车刀角度的测量。需要假想的三个辅助平面有()。
A.切削平面、基面、截面
B.切削平面、前面、后面
C.前面、后面、基面
D.前面、后面、切削平面、基面
参考答案:A
I don't think that sweater is suitable _____ this hot weather.[ ]
A. for
B. to
C. on
D. about
门静脉高压症常用的分流术有________________、________________、______________。