中成药取样抽取一次全检量的（）倍。
A.[1]
B.[2]
C.[3]
D.[5]
参考答案：C
—_____ the film about Zhan Tianyou?
—It's very exciting. [ ]
A. What do you think
B. What do you like
C. What do you think of
D. How do you think of
地方性砷中毒可引起人体
A．皮肤瘙痒
B．皮肤角化
C．恶心呕吐
D．神经衰弱
E．骨质硬化
