生产水泥的工人最宜多吃血料，其原因是(　　)_刷题宝

题干

生产水泥的工人最宜多吃血料，其原因是(　　)

A：血料多孔，表面积大，可吸附人体内的矿物尘埃

B：营养价值极高

C：血料可杀菌消毒

D：可医治某些疾病

上一题下一题 0.0难度选择题更新时间:2018-12-19 04:06:20

答案(点此获取答案解析）

A

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如图是两个互相啮合的齿轮，它们在同一时间内转动时，大齿轮和小齿轮转过的总齿数是相同的，尝试回答下面问题．

（1）

同类题2

阅读短文，然后判断后面的句子是否符合短文内容。

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同类题3

在用图1所示的实验装置做“探究平抛物体的运动规律”的实验中

同类题4

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同类题5

下列说法中，不正确的是（）

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