单选题：The police contended that the difficulties they faced were

题目内容：

The police contended that the difficulties they faced were too severe. A．argued
B．predicted
C．said
D．suggested

参考答案：

答案解析：

氨基糖苷类抗菌药的抗菌机制是

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根据材料回答题：According to the essay, you may have a cold because___________A．it is c

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分类：卫生类题型：单选题