未分类题

A．Tropical insects.
B．Decayed leaves.
C．Tree resin.
D．Bird feathers.

A.Tropical
B.
B．Decayed
C.
C．Tree
D.
D．Bird

【参考答案】

C
解析：What is amber derived from?
<上一题 目录 下一题>
热门 试题

多项选择题
抗心律失常药物的药学监护要点包括（）。

A.抗心律失常药物可引起心律失常
B.重视药物引起的非心脏性不良反应
C.应进行血药浓度监测
D.注意药物的相互作用
E.注意药源性肺损伤
单项选择题
W: So, what did you think about the discussion at lunch? I didn’t realize people have such strong feelings about politics. M: Are you kidding? That subject always touches a nerve. Q: What does the man mean?（）

A．No one was interested in the discussion.
B．Politics is a sensitive topic.
C．The woman is not being serious.
D．People avoided discussing politics.
相关试题