代偿性代谢性酸中毒时A．CO2CP↓，pH↓B．CO2CP↓，pH不变C．CO2CP

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问题单项选择题

代偿性代谢性酸中毒时

A．CO₂CP↓，pH↓
B．CO₂CP↓，pH不变
C．CO₂CP↓，pH↑
D．CO₂CP↑，pH↑
E．CO₂CP↑，pH不变

答案

参考答案：B

解析：代谢性酸中毒由[*]降低引起，CO₂CP降低来代偿，未超过代偿范围，pH正常。

句型转换

句型转换。

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He ______ ______ ______ the music club.

2. She can sing and dance. (否定句)

She ______ _______ _______ dance.

3. Li Lei can play the violin. (一般疑问句)

______ Li Lei _____ the violin?

4. She wants to join the music club. (就划线部分提问)

______ ______ ______ _____ _____ to join?

5. My sister can swim very well. (就划线部分提问)

______ ______ ______ sister swim?

单项选择题

绝缘杆工作部分不宜过长，一般为5-8mm，以免工作时造成（）

A.相间或接地短路

B.跨步电击

C.两相电击

D.单相电击