间日疟的发作周期一般是().
A.12小时
B.24小时
C.48小时
D.72小时
参考答案:C
— Susan,. why are you still here? They are all ready to start.
— I'm sorry, but I ______ when to meet. [ ]
A. don't tell
B. haven't told
C. wasn't told
以下关于车辆购置税的说法正确的是( )。
A.车辆购置税为中央税
B.征收环节多样化
C.征税具有特定目的
D.以在中国境内购置规定的车辆为课税对象