客观事物的丰富和变动，决定了新闻主题的多样性和______。
A．复杂性 B．深刻性C．多层次性 D．多变性
参考答案：C
用所给单词的适当形式填空。
1. Mr. Wang is _________ (serious) than Mr. Zhang.
2. I think _________ (different) are not important in a friendship.
3. The students in our class all _________ (go) to the mountains yesterday morning.
4. This bag is a little _________ (heavy) than that one.
5. Do you enjoy _________ (tell) stories?
药品生产企业必须对其生产的药品进行（）
A.自检
B.抽查检验
C.指定检验
D.复验
E.审批检验
