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题型：单选题题类：常考题难易度：普通

黑龙江省哈尔滨市第六中学2019-2020学年高一上学期英语10月月考试卷

When you take medicine, you should follow the doctor's .

A、instruction B、instructions C、introduction D、introductions

举一反三

For years，scientists have been worried about the________of air pollution on the earth's natural conditions.

________ is the study of living things.

—Whenever you want a good meal, come to my restaurant and eat for free.

—Believe me. That is an ________ I will not refuse.

As the income is increasing, the of family life has been changing over recent years.

Students and teachers gather together for a morning ______________ each Monday to attend the ceremony of raising the national flag.

Environmentalists fear that this is a short-sighted ______ to the problem of global warming.

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