OG 152

152. When the technique known as gene-splicing was invented in the early 1970's, it was feared that scientists might inadvertently create an "Andromeda strain," a microbe never before seen on Earth that might escape from the laboratory and it would kill vast numbers of humans who would have no natural defenses against it.

(A) it would kill vast numbers of humans who would have no natural defenses against it

(B) it might kill vast numbers of humans with no natural defenses against it

(C) kill vast numbers of humans who would have no natural defenses against it

(D) kill vast numbers of humans who have no natural defenses against them

(E) kill vast numbers of humans with no natural defenses against them (C)

为什么我不能认为是scientist 与it平行？

谢谢

你的意思是说 it would kill vast numbers of humans who would have no natural defenses against it. 也作为 a feared that 的内容吗 这样会产生两个错误:1)逻辑意思不合理,2)就算意思合理的话,前面也必须加一个 that 来保持平行.或者 也要在and 前面加一个逗号因为此AND 连接两个不同的主语