题目内容

使用下列新单词填空1You must finish the work before five o'clock; you have no ______.2 You can use a paper towel to ____ up the cooking oil.3 I must _____ the work is more difficult than I thought it would be.4 The local government is now faced with a/an _______ increase of crime rate.5 Research _______ that eating habits are changing fast.6 I _____ her mind by telling her that her children turned out to be safe.7 He wa so scared that for a moment he could not __________as to what to do next.8 We walked along the beach looking for a _____ to sit.9 A ________ line is the shortest distance between two points.10 It was terribly cold last night and the water in the lake _______ ice.

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为什么小肠是进行吸收最主要的部位?

水在小肠内的主要吸收机制为

A. 主动转运
B. 入胞作用
C. 易化扩散
D. 渗透

葡萄糖和氨基酸吸收的机制为

A. 原发性主动转运
B. 继发性主动转运
C. 易化扩散
D. 渗透

所有的营养物质的吸收都需要经过毛细血管进入血液循环

A. 对
B. 错

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