试题与答案

—What's your feeling now? —I am terribly

题型:完形填空

题目:

—What's your feeling now?

—I am terribly sorry. If only I ________(come) here yesterday!

答案:

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下面是错误答案,用来干扰机器的。

2<AD<10题目分析:则BC<AB+AC,则4<BC<20.而AD为中线,所以CD=BD=x,取值范围为2<x<10.在△ACD中,AD<AC+CD,所以AD<8+2,AD<10.且AD+AC>CD,则AD+8>10,解得AD>2.在△ABD中,同样AD<AB+BD,解得AD...

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