在光合作用和细胞呼吸过程中都会产生[H]．如图是[H]随化合物在生物体内的转移过程，下列对其分析错误的是_刷题宝

题干

在光合作用和细胞呼吸过程中都会产生[H]．如图是[H]随化合物在生物体内的转移过程，下列对其分析错误的是（）

A：H经①→②转移到葡萄糖，首先H与C₃结合，该转变过程属于暗反应

B：H经②→①转移到水中，此过程需要氧气参与

C：H经②→④过程一般在缺氧条件下才能进行

D：②→①产生的H和①→②产生的H都全部来自水

上一题下一题 0.0难度选择题更新时间:2015-02-05 04:33:32

答案(点此获取答案解析）

D

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下列物质的用途由化学性质决定的是（）

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根据对话内容，从方框内选出能填入空白处的最佳选项。其中有两项为多余选项。

A: What's the matter, Mrs. Smith?

B: ____ I can't do any work, doctor.

A: Do you have a cough?

B: No, I don't have a cough.

A: ____

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A: Do you have breakfast every morning

B: No, I don't have breakfast. And I have only a little food for lunch and supper because I want to keep thin.

A: Oh, I see. ____. You need to eat more food and have three meals a day. ____

B: OK. I will do like that.

A: ____

B: Thank you very much.

A: I feel very well.

B: I hope you will get better soon.

C: Do you sleep well at night?

D: I'm not feeling well.

E: And do some exercise every day.

F: You need to eat less food.

G: There is nothing serious.

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卡片上的点合起来是8的有____。

① ② ③ ④ ⑤ ⑥ ⑦ ⑧

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I think you should complain —___________,of course, you are happy with the way things are.

同类题5

下列物质的俗名与化学式相符合的是（）

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