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Sugar is so much a part of our modern life that we only think about it when, for some reason, we cannot obtain it. It has been known to man for at least 3,000 years, but has come into common use only in modern times. Until quite recently it was considered as a medicine and as a luxury for the rich only.
&& Sugar is, then, very important to our civilization. But what exactly is it? Of course, most of us recognize sugar immediately as the sweet material which we put in coffee or cakes. This common form of sugar is from two plants: the sugar cane (a type of grass which grows to a height of 20 feet) and the sugar beet (which grows underground). But in fact there are many types of sugar, and the chemist recognizes hundreds of different varieties, each coming from a different source.
&& About 90% of the sugar is produced as food. Only 10% is used in industry for purposes other than food production. Yet sugar has great possibilities for use as the basis of chemicals. It can even be used for making plastics. In the future these potential uses will certainly be developed more than in the past. There are many reasons why we should increase the production of sugar. Most important is that it is one of the most highly concentrated energy foods. Thus sugar cane and beet produce an average of 7,000,000 calories per acre. In this way they have the advantages over potatoes which give only 4,000,000, while the figure for wheat and beans is 2,000,000 each. So three acres of land growing wheat, beans and potatoes give only slightly more energy than one acre of sugar.
1．The heading of Paragraph One may be ______.
&&&&&& A．What Sugar Is&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& B．Sugar Through Ages&&&&&&
C．The Advantages of Sugar&&&&&&&&&&&&&&&&&&&&& D．Present And Future Uses of Sugar
2．The third paragraph emphasizes (强调) ______.
&&&&&& A．about 90% of sugar is used as food&&&&&& B．only 10% is used in industry
&&&&&& C．sugar used for making plastics&&&&&&&&&&&&& D．future uses of sugar
3．Sugar has been used widely ______.
&& A．for 3,000 years&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& B．in modern times&&
&&&&&& C．until quite recently&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& D．for 300 years
4．The main reason why we should increase the production of sugar is that ______.
&&&&&& A．sugar tastes sweet&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& B．we can save plenty of land&
C．we can take in more energy&&& &&&&&&&&&&&&& D．it provides much energy
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名称: Command: Modern Air / Naval Operations WOTY
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此游戏的 DLC
After decades of proxy wars, Middle East is on the verge of a war of dramatic consequences, as tensions between Saudi Arabia and Iran have brought both countries to mobilize!The international community, divided and ineffective, can only watch as the largest conventional battle in the Middle East since the 2003 invasion of Iraq is about to begin.Black Gold Blitz, the seventh instalment in the Command LIVE series, has been released! This new episode explores a scenario in which religious, economic and political tensions between Tehran and Riyadh have reached a point of no return, and direct war seems unavoidable.
Grab the game now!
The Command LIVE News Team has sent his last editorial report, directly from the frontline!Saudi Arabia and Iran’s international relations are getting worse, after the news of gunfire between an Iranian marine ship and Saudi forces.Considering the endless list of proxy wars the two countries have fought for supremacy in the region, the chance of a wider conflict is now more concrete, with rumors of an Iranian retaliation being confirmed!Read the analysis below to get prepared for what is coming!Command LIVE: Black Gold Blitz will be available on November 7th
“If you have even mild interest in the underlying subject matter (Modern Air/Naval Warfare), I can just about guarantee that you’ll be captivated by”9.5/10 – “A seriously fun, intense, involving simulation of modern naval combat with nearly infinite replay value.”9.5/10 – “If it is not named “Game of the Year” in its genre, then that accolade is meaningless.”
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Scream over the runways of super-hardened Iraqi airbases as your squadron sprinkles bomblets on the pavement or blows up aircraft shelters using laser-guided bombs. Turn back the Russian tide in the Ukraine. Ride the Mediterranean waves in fast Israeli attack craft, trading barrages of anti-ship missiles with Syrian ships. Stand toe-to-toe against Iran in the Persian Gulf. Wrestle the Falklands under your control. Go “Down Town” around Hanoi and spar with the deadly NV air defences. Hunt down rogue nukes in Pakistan before they fall into terrorist hands. Face off with your carrier group against India or China – from either side. Square off against the Soviet Union in the cold war confrontation, and against resurgent Russia in the new multipolar world order. Lead nuclear-powered sharks of steel against the masters of antisubmarine ops. Exchange volleys of fire in close-quarters gun duels, or obliterate the enemy with sophisticated, heavy-hitting hypersonic missiles from hundreds or thousands of miles away. Survive massive, vicious air battles. Escort vital convoys to their destination, or make a last stand against all odds. When things escalate out of control, step up to unconventional or even nuclear weapons. Play the most dangerous game of hide and seek – at sea, on land and in the air - even in near-space. Command is the next generation of air/naval wargaming.YOU ARE IN CONTROLSurface fleets, submarine squadrons, air wings, land-based batteries and even satellite constellations are yours to direct as you see fit – from the lowliest pirate skiff to the mightiest aircraft carrier, from propeller biplanes to supersonic stealth fighters, and from WW2-era iron bombs, torpedoes & mines and the trusty &Mk1 Eyeball& to ultra-modern radars with imaging capability, multi-spectral recon satellites, &brilliant& self-guided stand-off weapons, 200-knot supercavitating torpedoes and hypersonic anti-ship ballistic missiles. Every sensor and weapon system is modeled in meticulous detail. You ar but you have to use it well.THE WORLD AT YOUR FINGERTIPSThrow your distorted flat maps away – Command uses a realistic 3D earth globe for each of its scenarios. Rotate and zoom in and out of the action, from satellite view down to the trenches and wavetops. Play scenarios or build your own on any place on earth – from classics like the Middle East, South Atlantic, North Cape and Europe to new and rising hotspots like the Arctic, the Pacific and the Indian Ocean. Use a powerful yet intuitive point-and-click mouse interface for controlling your forces and go advanced with a wide collection of hotkeys for quickly jumping around the action and issuing complex orders in the heat of the battle.RELENTLESS REALISMSensors and weapons work just like in real life, with all their strengths and weaknesses. Units move, detect, fight and win or die based on what their systems can and cannot do. Electronic warfare and technological levels can tilt the balance of battle. The weather can be your best ally and your worst enemy. The terrain, both overland and undersea, can hide you from the enemy but also can block your weapons from firing. Your aircraft can choose different mission profiles and loadouts, each with its advantages and limitations, and can dash high (speed, range) or scream low (protection). Thermal layers, convergence zones, surface ducting, the deep sound channel and factors such as water temperature and terrain slope may decide the sub vs ship duel. Thick clouds or rain can render your fancy laser-guided bombs useless. Stealth may help you avoid detection, or a jamming barrage may tip the scales when you are out of options. Command’s battle environment is as unforgiving as the real thing – and as rewarding for those who understand and use it.THE MEN AT THE CONTROLSYour war machines are (almost always) they are crewed by humans. People trained with varied proficiency (from novice to ace), operating under custom doctrine and rules of engagement (when to do what, how to decide, how to react etc.), most of the time making the rational decision, and sometimes making a brilliant call or a mistake. These people often matter far more than the hardware. The very same surface-to-air missile battery that is a worthless toy when staffed by Iraqi or Libyan crews turns to a deadly weapon even against ultra-modern aircraft under the expert hand of Egyptian, Serbian or Russian operators. The deadliest combat units are only as sharp as their crews.AIR/NAVAL WARFARE AROUND THE WORLDKorea. Colonial wars. Vietnam. Middle East. Cuba. Falklands. Iran-Iraq. World War 3. Desert Storm. India & Pakistan. The Arctic circle. Past and future conflicts in the Pacific, Norwegian Sea, Russian periphery and more. Experience conflict from post-WW2 all the way to 2020+ and beyond. Test your mettle against lethal land-based missile batteries, air regiments, naval fleets or pirate groups. Face off against threats of the past, present and future. How do you measure up against the challenges of modern warfare?LEAD, DON’T MICROMANAGERealistic modern combat with all its technicalities scaring you away? Your staff & tactical AI sweat the details so you don’t have to. Airbase crews shuffle aircraft around on land facilities to prepare them for the next mission. Aircraft position themselves to deliver their payloads optimally, and refuel on their Ships and subs maneuver on their own to reach out and touch the enemy (including winding their way around islands, landmasses and even known mines) – and everyone tries very hard to save his skin when bullets are flying. Manage the big decisions and let your virtual crews get to the details – and still intervene whenever you want.MAKE YOUR OWN WARThink you can build a better conflict? Prove it! Command’s integrated scenario editor offers unparalleled functionality for making your own scenarios or editing existing ones. Create and share with other players detailed, exact-down-to-the-meter land installations from all over the world – from airbases to port complexes to ICBM fields. Customize unit icons, sound effects, even platform weapons and sensors (Aegis on the USS Iowa – click and done). Create multiple sides with variable, complex alliances and postures and different proficiency ratings. Assign forces to detailed missions with custom behaviors and inheritable doctrines. Script complex interactive events with the advanced event editor. Assign variable success thresholds – from triumph to utter defeat. From a gunboat duel all the way to global thermonuclear warfare – the possibilities are endless.HUNDREDS OF SCENARIOSCommand MANO includes 42 scenarios (3 tutorials) and hundreds of community scenarios availablePowerful, detailed 3D-globe (Google Earth-style) with multiple map layersIntuitive, point-and-click user interface for beginners backed up by a vast array of hotkeys for power users Aircraft, surface ships, submarines, land units, strategic & space forces and all their real-life sensors, weapons and other systems are at your disposalExtensive, detailed simulation databases modeling faithfully the capabilities & limitations of each unitMore then 40 included scenarios covering multiple historic and hypothetical conflicts. Integrated scenario editor - make and share your own battles or modify existing scenariosIntegrated database viewer - browse through the stats for every platform, sensor and weapon in the gameTremendous flexibility of scale: From counter-piracy skirmishes to strategic nuclear warDetailed modeling of air (including near-space) and naval operations, both surface and underwater, supported by high-quality physics, sensor/EW, terrain and weather, weapon and damage modelsFocused modeling of land-based forces relevant to air/naval/space operationsMine and mine-countermeasure operationsNuclear operations and other special-weapon categoriesRecorder & replay ability
最低配置:操作系统: Windows XP SP3 / Vista / 7 / 8处理器: 1 GHz (Dual-core Pentium and above recommended)内存: 1 GB RAM图形: Video/Graphics: DirectX 9.0c compatible video card with 16 MB RAM存储空间: 需要 10 MB 可用空间声卡: Compatible sound card附注事项: Requires Windows Media Player
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