托业考试

Thenewlyinstalledalarmsystem,whichisdire

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根据网考网考试中心的统计分析,以下试题在2017/11/3日托业考试习题练习中,答错率较高,为:84%
【单选题】The newly installed alarm system, which is directly connected to the police, will go off if the correct security code is not entered ______ 60 seconds of touching the keypad.


A.only
B.under
C.within
D.directly


网考网参考答案:C,答错率:84%
网考网试题解析:

备选答案为副词和介词。首先应分析句子结构,判断横线处应填入介词还是副词。乍一看应填入副词修饰被动结构is not entered,实际上if从句是被动语态,______60 seconds of touching the keypad应作状语。因此横线处应填入介词,从而构成介宾短语作状语。 document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>

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