可以引起嗜睡等副作用的是
A．甲泼尼龙B．泼尼松C．地塞米松D．二丙酸倍氯米松E．酮替芬
参考答案：E
--- Sorry, it's already 6 o’clock. I have to be off for an appointment.
---OK. ________.
A．It couldn’t be better
B．You really have me there
C．Let’s call it a day
D．Take your time
基轴制中的轴称为基准轴。其为（）零。
A．下偏差
B．上偏差
C．公差
D．极限尺寸
