_____ three influenza type A virus subtypes(子类型) have been found in pigs.A．By fa
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 |
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答案
| C |
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。 |
举一反三
The problem is not ____ so easy as you think. It’s far from being settled.| A．hardly | B．almost | C．nearly | D．scarcely |
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When you arrive at the hotel, you’ll______ notice the friendly staff, who will make your holiday a wonderful dream.| A．sensitively | B．scarcely | C．immediately | D．obviously |
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My parents will move back into town in a year or _______ .| A．later | B．after | C．so | D．about |
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We suddenly saw the bus about to leave and had to run _____ to catch it.| A．hardly | B．awkwardly | C．hard | D．strongly |
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