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【单选题】

One Good Reason to Let Smallpox Live It’’s now a fair bet that we will never see the total extinction of the smallpox virus. The idea was to cap the glorious achievement of 1980, when smallpox was eradicated in the wild, by destroying the killer virus in the last two labs that are supposed to have it—one in the US and one in Russia. If smallpox had truly gone from the planet, what point was there in keeping these reserves 【51】 reality, of course, it was to 【52】 that everyone would let 【53】 of such a potent potential weapon. Undoubtedly several nations still have 【54】 vials. 【55】 the last" official" stocks of live virus bred mistrust of the US and Russia, 【56】 no obvious gain. Now American researchers have 【57】 an animal model of the human disease, opening the 【58】 for tests on new treatments and vaccines. So once again there’’s a good reason to 【59】 the virus—just in 【60】 the disease puts in a reappearance. How do we 【61】 with the mistrust of the US and Russia 【62】 . Keep the virus 【63】 international auspices in a well-guarded UN laboratory that’’s open to all countries. The US will object, of course, just as it rejects a multilateral approach to just about everything. But it doesn’’t 【】 the idea is wrong. If the virus 【65】 useful, then let’’s make it the servant of all humanity——not just a part of it. smallpox n. 天花 vial n. 小瓶 auspices n.赞助;支持 cap vt. 结束;覆盖 potent adj. 有效力的;强有力的 mistrust n. 不信任,怀疑

A.
method
B.
road
C.
street
D.
way
题目标签:效力天花覆盖
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【单选题】为将数组myArray的长度由6改为10,现采取以下编码:int[]myArray=newint[6];myArray=newint[10];(覆盖)代码执行后,以下叙述哪项是正确的?()

A.
数组myArray的长度已由6改为10,其中前6个元素的值不变,后四个元素的值为空。
B.
数组myArray的长度已由6改为10,其中前6个元素的值不变,后四个元素需再经过初始化后才能使用。
C.
数组myArray的长度已由6改为10,原来6个元素的值全部丢失。
D.
数组myArray的长度没有变化。

【单选题】首先使用“人痘苗”预防天花的是

A.
法国人
B.
英国人
C.
希腊人
D.
印度人
E.
中国人

【单选题】宫颈内口部分被胎盘组织覆盖时为

A.
正常位置胎盘
B.
完全性前置胎盘
C.
部分性前置胎盘
D.
边缘性前置胎盘
E.
以上均不对