单选题：The main idea of the passage is to explain

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题目类型：单选题
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题目内容：

The main idea of the passage is to explain A．how to treat a sprained ankle
B．how a sprain occurs
C．how to bandage an injured foot
D．how to reduce the temperature of a wounded area

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答案解析：

回答题：Sprained(扭伤)Ankle

回答题：Sprained(扭伤)AnkleOne of the most common injuries teenagers and adults experi

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Exercising your brain every day is beneficial _________.

Exercising your brain every day is beneficial _________.A．for younger and older

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Scientists are not sure why we need sleep.

Scientists are not sure why we need sleep.A．Right B．Wrong C．Not Mentioned

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The frightening news is spread across the whole country.

The frightening news is spread across the whole country.A．surprising B．boring C．

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Our discussion should be related to the topic on environment

Our discussion should be related to the topic on environmental protection.A．be r

分类：卫生类题型：单选题

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