对机体免疫功能具有抑制作用的药物是（）A、人参 B、北沙参 C_爱下问搜题

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问题单项选择题

对机体免疫功能具有抑制作用的药物是（）

A、人参

B、北沙参

C、党参

D、当归

E、白术

答案

参考答案：B

选择题

— Did you watch the basketball match yesterday?
— Yes, I did. You know, my brother _____ in the match.

A. is playing
B. was playing
C. has played
D. had played

填空题

在综合解释统计、固井、井斜数据表中，填写水泥塞深时，油层套管按（）填写。