设置有()和换刀机构,使加工中心的功能和自动化加工的能力更强。
A、刀架;
B、主轴套筒;
C、刀库;
D、对刀仪。
参考答案:C
一般存款账户的使用范围包括()。
A.借款归还
B.住房基金
C.日常转账结算
D.社会保障基金
There aren't many seats left for the concert; you had better make sure ________ two today. [ ]
A. getting
B. to have got
C. that you get
D. that you will get