以下杂质检查项目所使用的试剂是：易炭化物（）. A．25%氯化钡_爱下问搜题

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问题单项选择题

以下杂质检查项目所使用的试剂是：易炭化物（）.

A．25%氯化钡溶液

B．硝酸银试液

C．硫酸

D．硝酸

E．碘化钾试液

答案

参考答案：C

选择题

She _____ on a new novel ever since this summer and it is supposed to _____ at the beginning of 2011.

A. had worked; be published
B. had been working; have published
C. has worked; publish
D. has been working; be published

单项选择题

小儿常见汗证为( )

A．自汗，盗汗

B．大汗，手足心汗

C．自汗，大汗

D．自汗，战汗

E．大汗，战汗