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标题: prep07 53 普通的名词做定语和所有格定语 [打印本页]

作者: Etoile-    时间: 2017-9-25 15:40
标题: prep07 53 普通的名词做定语和所有格定语

Most vaccines are derived fromweakened or killed strains of the same virus that they prevent, unlike thederivation of smallpox vaccine from a different virus altogether.


(A) the derivation of smallpoxvaccine from a different virus altogether

(B) smallpox vaccine, which isderived from a different virus altogether

(C) smallpox's vaccine, which getsderived from a different virus altogether

(D) when smallpox vaccine is derivedfrom an altogether different virus

(E) the altogether different virusfrom which smallpox vaccine is derived

想请教各位大佬smallpox vaccine, smallpox's vaccine两者到底怎么区别啊
网上看了好久还是没看懂
这道题的答案是B


作者: Etoile-    时间: 2017-9-25 20:58
自顶一下,求个大佬来回答一下
作者: gongxiaorong    时间: 2017-9-27 04:28
这两个的区别就是哪个更优,一般都说rabies vaccine,flu vaccine的,没有加'的,同时be动词的系表结构也比get这个强。




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