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问题 单项选择题

左向右分流型先天性心脏病最多见并发症为（）

A.心律失常

B.肺炎

C.脑栓塞

D.感染性心内膜炎

E.喉返神经麻痹

答案

参考答案：B

选择题
— Sorry to have interrupted you. Please go on.
— Where was I? 
— You _____ you didn't like your father's job.

A. had said
B. said
C. had been saying
D. were saying
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单项选择题

中国药典规定“熔点”系指

A．固体初熔时的温度

B．固体全熔时的温度

C．供试品在毛细管中收缩时的温度

D．固体熔化时自初熔至全熔时的一段温度

E．供试品在毛细管中开始局部液化时的温度
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