我国约有鼠类（）多种。A.150 B.160 C.200 D.250_爱下问搜题

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问题单项选择题

我国约有鼠类（）多种。

A.150

B.160

C.200

D.250

答案

参考答案：B

选择题

Fail in the election _____ he _____, he became famous for his wonderful speech against slavery.

A. although; did
B. though; does
C. as; did
D. even if; does

填空题

发动机电控汽油喷射系统的诊断方法主要有（）诊断法、（）诊断法、（）经验法。