【单选题】
下面的短文有15处空白，请根据短文内容为每处空白确定1个最佳选项。
It’s now a fair bet that we will never see the total extinction(灭绝)of the smallpox(天花)virus. When smallpox was completely got rid of in the world,scientists wanted to {{U}} (51) {{/U}}the killer virus in the last two labs -- one in the US and one in RussiA、They asked:If smallpox has truly gone from the planet,{{U}} (52) {{/U}}point was there in keeping these reserves
In reality,of course,it was naive to{{U}} (53) {{/U}}that everyone would let go of such a powerful potential weapon. Undoubtedly several nations still have{{U}} (54) {{/U}} vials(小药瓶).And the last "official" stocks of live Virus bred mistrust of the US and Russia,{{U}} (55) {{/U}}no obvious gain.
NowAmerican researchers have{{U}} (56) {{/U}} an animal model of the human disease, opening the{{U}} (57) {{/U}}for tests on new treatments and vaccines(疫苗). So once again there’s a good reason to{{U}} (58) {{/U}}the virus -- just in {{U}} (59) {{/U}}the disease puts in a reappearance.
How do we {{U}} (60) {{/U}}with the mistrust of the US and Russia {{U}} (61) {{/U}}. Keep the virus{{U}} (62) {{/U}}international support in a well-guarded UN laboratory that’s open to all countries. The US will object,of course,just as it {{U}} (63) {{/U}}a multilateral(多边的)approach to just about everything.But it doesn’t mean the idea is {{U}} (64) {{/U}}. If the virus is useful,then let’s {{U}} (65) {{/U}}it the servant of all humanity -- not just a part of it.
B．for
C．at
D．of
网考网参考答案：B
网考网解析：
[解析] in，at和of后面不能接句子，此句意思是：美俄最后的“官方”的活病毒储备引起大家对这两个国家的不信任，因为并没有获得明显的收获。故选B。 document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>
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