下列关于激素的叙述，错误的是[ ] A．肾上腺素发挥作用后被

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问题选择题

下列关于激素的叙述，错误的是[ ]

A．肾上腺素发挥作用后被灭活

B．体内失水过多时抗利尿激素释放减少

C．激素调节过程中存在反馈调节

D．对血样中相关激素水平的分析可帮助诊断甲状腺疾病

答案

答案：B

听力题

根据首字母或汉语提示，用正确的词完成句子。

1. I think Zhang Hua is a __________(勇敢的) young man.

2. Would you help me ____________ (解决) this problem?

3. We should know how to cook _____________ (有益健康的)and tasty meals.

4. When the bus stopped, we all got off _________________(迅速地).

5. Betty is a beautiful girl. She w___________ small round glasses.

6. We are happy to join in after-school a____________________ every week.

7. This skirt is e_____________ more expensive than that one.

8. The story is very b___________ and I don’t want to read it.

问答题简答题

简述对切削刀具材料的基本要求。