下列有关稳态与调节的叙述正确的是（） A.人体内环境是由血液、

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问题单项选择题

下列有关稳态与调节的叙述正确的是（）

A.人体内环境是由血液、组织液和淋巴组成的

B.神经递质由突触前膜合成并释放

C.免疫系统受损使患癌症的几率大大提高

D.胰岛素和胰高血糖素相互协同作用，共同维持血糖含量的稳定

答案

参考答案：C

填空题

根据句子中所给的单词首字母或中文提示，填写正确的单词。

1. His mother is a n______ and she works in the hospital.

2. Tomorrow is Sunday. Don't w______ me up too early.

3. The room is so dark that I can’t see anything c______.

4. The p______ of the computer is 5000 yuan. I can't afford it.

5. Alice used to be q______, but now she is very outgoing.

6. Li Lei is going to be an ______(工程师) when he grows up.

7. I believe you will ______(成功) if you don't give up.

8. This skirt doesn't fit me, please give me ______(又一的) one.

9. I feel ______(坚定地) that you've made the wrong decision.

10. We hope you can ______(提供) us with some information about shopping online.

填空题

把120平均分成6份，每份是（）。