肾主生殖的理论研究得以深化是在
A．汉代
B．唐代
C．明代
D．清代
E．宋代
参考答案：C
--Did you take the coat finally?
--- No, it was beautiful, but was out of my price ____.
A．control
B．reach
C．aim
D．range
车钩的强度拉伸载荷在（）左右。
A.180tf
B.170tf
C.160tf
D.150tf
