UPS一般标示要求供电频率是多少()
A.60Hz
B.55Hz
C.50Hz
D.45Hz
参考答案:C
Make sentences. 连词成。句
1. her, is, subject, what, favourite (?)
2. like, I, is, it, science, because, interesting (.)
3. like, also, I, pictures, draw, to (.)
4. like, does, English, brother, your (?)
自发性气胸的体征不包括下列哪项()。
A.气管多移向健侧
B.患侧胸部隆起
C.患侧呼吸运动和语颤减弱
D.叩诊呈浊音
E.患侧听诊呼吸音减弱或消失