本贴相关题目 OG-12-SC-30 (UDPJ)

00:00:00

For members of the seventeenth-century Ashanti nation in Africa, animal-hide shields with wooden frames were essential items of military equipment, a method to protect warriors against enemy arrows and spears.

正确答案: C

885补充-41

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xianwharton

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发表于 2003-10-25 18:28:00 | 显示全部楼层

885补充-41

41.Since chromosome damage may be caused by viral infections, medical x-rays, and exposure to sunlight, it is important that the chromosomes of a population to be tested for chemically induced damage be compared with those of a control population.
(A) to be tested for chemically induced damage be compared with
(B) being tested for damage induced chemically are compared with
(C) being tested for chemically induced damage should be compared to
(D) being tested for chemically induced damage are to be compared to
(E) that is to be tested for chemically induced damage are to be comparable with
答案是A，傻傻得问it is important后跟虚拟吗？