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  3. While most armies in the world shun their use, and military authorities exclude them from warfare, the technology to produce bio

While most armies in the world shun their use, and military authorities exclude them from warfare, the technology to produce bio

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问题     While most armies in the world shun their use, and military authorities exclude them from warfare, the technology to produce biological and chemical weapons is widely available around the world.【C1】______, these weapons are cheap, easy to conceal, and very【C2】______. Since September 11, 2001, biological weapons【C3】______to have become the weapon of choice among the desperate【C4】______of the world.  Some people are worried chemical warfare may【C5】______, which would bring an unbelievable disaster to the whole world.
    Chemical weapons are【C6】______in variety. Their effectiveness can be【C7】______by several factors, including age,【C8】______, weather conditions, and choice of  dissemination. They include nerve agents, blister agents, and choking agents, all of【C9】______can be ingested through the eyes, lungs, or skin. Satin, a type of nerve gas, was used【C10】______the Aum Shinrikyo cult in March 1995, killing 12 people and【C11】______more than 5,500 on a Tokyo subway.
    Biological weapons, by【C12】______, are any infectious agent, such as a bacterium or virus, used deliberately to【C13】______harm on soldiers and civilians alike. This【C14】______can include toxin and poison derived biologically. Biological weapons can be produced nearly【C15】______, from government labs to suburban kitchens.
    Experts contend, however, that the【C16】______of a deadly virus or bacterium into an effective weapon is anything【C17】______straightforward: A conventional bomb would likely destroy the germ as it【C18】______. In contrast, dissemination【C19】______alternative methods,  such as surface mail, has recently【C20】______quite effective.
【C11】
选项 A、slaughtering
B、injuring
C、rescuing
D、murdering
答案B
解析 动词辨义题。此处是一个and的并列连接。与killing 12 people相并列说明的，不难推测应该是在东京地铁站的受伤人数。故选择injuring“受伤”。slaughter意为“残杀，屠杀”；murder意为“谋杀”；这两项均与前面的killing一词重复，可排除。rescue意为“营救，救援”。该句说的是沙林毒气爆炸在东京地铁站造成的伤亡情况，故与救援无关，可排除。
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大学英语四级

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