引起中心静脉压升高的因素有（） A.由直立位改为平卧位 B.骨_爱下问搜题

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问题多项选择题

引起中心静脉压升高的因素有（）

A.由直立位改为平卧位

B.骨骼肌的活动减少

C.容量血管收缩

D.输血或输液过多、过快

E.右心室射血功能减弱

答案

参考答案：C, D, E

句型转换

句型转换。

1. They have a baseball. (改为一般疑问句)

_________ _________ a baseball?

2. Lily has a computer. (改为否定句)

Lily _________ _________ a computer.

3. Does Mary have 4 baseballs? (作否定回答)

No,_________ _________.

4. Her father watches TV every day. (改为否定句)

Her father _________ _________ TV every day.

5. They have some balls. (改为单数句子)

_________ _________ _________ ball.

6. This story is boring. (改为同义句)

This story_________ _________.

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