题目内容

What does the author want to tell us?

A. The harm of sitting too much.
B. How to keep healthy.
C. The relationship between sitting and standing.
D. Some habits are fatal.

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A. 库利吉
B. 居里夫人
C. 伦琴
D. 万莱沃纳

A. 对
B. 错

A. 换鞋→换外衣→穿洁净服→洗手→消毒→进入净化区
B. 换鞋→换外衣→洗手穿洁净服→消毒→进入净化区
C. 换鞋→换外衣→消毒→洗手→穿洁净服→进入净化区
D. 换鞋→洗手→换外衣→穿洁净服→消毒→进入净化区

A. 5帕
B. 10帕
C. 15帕
D. 20帕