矫正中部凸起的板料,必须先锤击(),从()向()并应逐渐由重到轻、由密到稀的锤击,这样凸起的部位才能逐渐趋向平整。
参考答案:边缘;外;里
I'd really appreciate ________ if you would turn off the lights before you leave.[ ]
A. you
B. that
C. as
D. it
主肃降哪脏的功能
A.肝
B.心
C.脾
D.肺
E.肾