能反映急性呼吸窘迫综合征（ARDS）的典型症状是（）。 A.脉搏浅

搜题请搜索小程序“爱下问搜题”

问题单项选择题 A1/A2型题

能反映急性呼吸窘迫综合征（ARDS）的典型症状是（）。

A.脉搏浅快

B.血压下降

C.心律不齐

D.进行性呼吸困难

E.出现神经精神症状

答案

参考答案：D

填空题

用下列词的适当形式填空。

1. He's too old. He can't run _______ (quick).

2. She's very careless. She can't do her lessons _______ (careful).

3. Little Tom is often late for class. His teacher is quite _______ with him. He said to him _______, "Don't be

late again." (angry)

4. It's dark in the room. Can you see these pictures _______ enough (clear)?

5. Listen, the children are playing games _______ (noisy).

6. There was a _______ rain last night. When I got home, it was raining _______ (heavy).

7. Please take _______ care of the little bird. It can sing _______ (good).

8. Walk _______ in the library, you should keep _______ (quiet).

解答题

若x ^m+2n=16，xⁿ=2，(x≠0)，求x^m+n的值