搜题请搜索小程序“爱下问搜题”
问题 单项选择题

呼吸衰竭伴有二氧化碳潴留时，下列变化哪项是不正确的（）

A.呼吸性酸中毒

B.脑血流量降低

C.肾脏保留碳酸氢盐

D.神志模糊

E.颅压增高

答案

参考答案：B

解析：缺氧和二氧化碳潴留均会使脑血管扩张，血流阻力降低，血流量增加。其他各项均可出现。

选择题

下图为以邯郸（36°N，114°E）为中心的半球示意图，Q点地处4°N，此刻夜半球与图示区域重叠达到最多。读图回答下列问题。 

小题1:图示时刻

A．Q点区时为12时

B．太阳直射点位于东半球

C．南极昆仑站处于极夜时间

D．新一天范围少于旧一天范围小题2:图示日期，邯郸、P、Q三地

A．太阳日出方位相同

B．P地的白昼最长

C．三地日出时，地方时刻相同

D．三地中Q地的正午太阳高度最小
查看答案
句型转换

完成句子，使改写后的句子完整，并与原句意思相符，注意每空只填一个单词。

1. They were winners in the match finally.

   They were winners in the match __________ ___________.

2. He didn't come because he was ill yesterday.

   He didn't come __________ __________his __________yesterday.

3. I wasn’t at school last week.

   I was __________ __________school last week.

4. Tom was born in 1990. Jack was born in 1990,too.

  Tom is __________ __________ __________Jack

5. What is the meaning of "xchange" ?

  What do you __________ __________"exchange" ?
查看答案