皲裂的辨证是()
A.风寒
B.风热
C.血虚风燥
D.气血不足
E.气血不和
参考答案:C
---- You’ve heard from Jane, right?
---- Yes, I received her e-mail ___________.
A.every day
B.for two hours
C.two hours ago
D.in two hours
如右图所示,从高H的平台上,以初速度v0抛出一个质量为m的小球,当它落到抛出点下方h处时的动能为(
A.
B.
C.
D.