搜题请搜索小程序“爱下问搜题”
问题 单项选择题

下列有关β受体阻滞剂的描述中，错误的是

A．β受体阻滞剂已广泛用于治疗高血压

B．对伴有心绞痛者还可减少发作

C．普萘洛尔用量个体差异大，一般从小剂量开始

D．普萘洛尔的作用优于β1受体阻滞剂

E．美托洛尔对伴有阻塞性肺疾患者比普萘洛尔安全

答案

参考答案：D

填空题

用所给单词的正确形式填空。

1. My uncle is an               (engine) in a big factory.

2. He              (pick) up some garbage on his way to school yesterday morning.

3. He feels               (surprise) that she has passed the exam.

4. She entered the room and turned on the              (electricity) light.

5. I think buses make               (little) pollution than cars.

6. He has been to               (English) twice.

7. Listen! Who               (sing) in the next room?

8. It's              (danger) to cross the street when there is much traffic.

9. China is an              (Asia) country.

10. This is my              (two) e-mail.

查看答案
多项选择题

下列属于民用危险物品的有( )以及放射性物品。

A．管制刀具

B．枪支、弹药

C．易燃易爆物品

D．剧毒物品
查看答案