_____ three influenza type A virus subtypes(子类型) have been found in pigs.A．By fa - 高中英语试题 - 超级试练试题库

题目

题型：不详难度：来源：

_____ three influenza type A virus subtypes(子类型) have been found in pigs.

A．By far

B．As far as

C．So far

D．Till far

答案

解析

C考查far短语辨析。句意：迄今为止，在猪身上共发现3种A型流感病毒的子类型。by far最----，-------得多，用在形容词和副词后；as/so far as 就---而言，远到------；so far 迄今为止，主句常用现在完成时，分析have been found完成时被动语态可见so far符合句意和语言用法。

核心考点

试题【_____ three influenza type A virus subtypes(子类型) have been found in pigs.A．By fa】；主要考察你对副词等知识点的理解。[详细]

举一反三

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A．hardly

B．almost

C．nearly

D．scarcely

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A．sensitively

B．scarcely

C．immediately

D．obviously

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A．later

B．after

C．so

D．about

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A．hardly

B．awkwardly

C．hard

D．strongly

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Deserts, dry areas with _____ no vegetation, cover more than one-third of the Earth"s land surface.

A．surprisingly

B．eventually

C．permanently

D．virtually

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