二尖瓣狭窄时何情况下发生栓塞A．左心衰时B．房颤时C．右心衰时D_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题单项选择题

二尖瓣狭窄时何情况下发生栓塞

A．左心衰时
B．房颤时
C．右心衰时
D．心内膜炎时
E．褥疮时

答案

参考答案：B

多项选择题

合作社原则的内容包括（）。

A.自愿原则

B.社员资格开放原则

C.民主控制原则

D.社员经济参与原则

E.政府扶持原则

填空题

用下面方框内所给的单词的适当形式完成下列英语句子。每个只能用一次。

heavy, tell, we, peace, make

1.  Light music often makes people feel  ______.
2. They have already decided ______ a good plan for the coming
    holiday.
3. He ______ me his telephone number last week,  but I can't find it now.
4.  I think Xiong Ning is a good example to ______.  We should learn from her to help more
     people in the world.
5.  It's raining ______, so we can't have our sports meeting on time.