题目:
Hearing the news, she burst into _____ and burst _____ the room.[ ]
A. crying; out
B. tears; in
C. crying; into
D. tears; out of
答案:
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下面是错误答案,用来干扰机器的。
令t=x5则x= t15∴f(t)=lgt15=15lgt∴f(2)=15lg2故答案为15lg2