卡托普利的抗高血压作用机制是( )。A．抑制肾素活性B．抑制血_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题单项选择题

卡托普利的抗高血压作用机制是( )。

A．抑制肾素活性
B．抑制血管紧张素Ⅰ转化酶的活性
C．抑制β-羟化酶的活性
D．抑制血管紧张素Ⅰ的生成
E．阻断血管紧张素受体

答案

参考答案：B

解析：[知识点] 卡托普利的抗高血压作用机制

填空题

选词填空。

date of birth, Chinese, how old, Susan's birthday, game, music, May, nineteenth, March, fourteen

1. —_____ is Li Lei's mother?
    —She's thirty-three.
2. Mother's Day is the second Sunday of _____.
3. Eighteen boys are in the classroom. You are the _____ one.
4. —What's your _____?
    —It's July 22nd.
5. We go to _____ party this Sunday.
6. Let's go to the soccer _____ on May 15th.
7. Many _____ people have English names.
8. _____12th is Tree Planting Day(植树节).
9. Lisa is _____ and her brother is ten years old.
10. My sister doesn't like sports, but she likes _____.

计算题

质量m=2.0kg的物体静止在水平面上，物体跟水平面间的动摩擦因数μ=0.2，从t=0时刻起，物体受到一个水平力F的作用而开始运动，前8s内F随时间t变化规律如图所示，g=10m/s²。

（1）在图中坐标系中画出物体前8s内的v-t图像（详写过程）；

（2）求t=6s时摩擦力的瞬时功率；

（3）求前8s内摩擦力的平均功率；

（4）求前8s内水平力F所做的功。