使肘关节屈曲的肌肉有（）
A.肱二头肌
B.肱三头肌
C.肱肌
D.肱桡肌
E.喙肱肌
参考答案：A, C, D
The teacher won’t begin the class ______ all the students ______.
A．until ; stop to talk
B．until; stop talking
C．if; stop to talk
D．if ; stop talking
当急性肾炎患儿出现高血压脑病时，首选的降压药物是
A．利血平肌注
B．硝苯地平舌下含服
C．肼苯达嗪口服
D．速尿静注
E．硝普钠静脉滴注
