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OG12 40题的all 和each
40. Dr. Tonegawa won the Nobel Prize for discovering how the body can constantly change its genes to fashion a seeming unlimited number of antibodies, each specifically targeted at an invading microbe or foreign substance.
(A) seeming unlimited number of antibodies, each specifically targeted at
(B) seeming unlimited number of antibodies, each targeted specifically to
(C) seeming unlimited number of antibodies, all specifically targeted at
(D) seemingly unlimited number of antibodies, all of them targeted specifically to
(E) seemingly unlimited number of antibodies, each targeted specifically at
关于D 选项 OG上说all用的不对,我理解antibodies后面的句子是antibodies的同位语,那antibodies是复数形式,后面用all 不比each好吗?
这个each我反而有点不懂!求教!!! |
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