在丝杆螺距为6mm的车床上,车削( )螺纹不会产生乱扣。
A.M8
B.M12
C.M16
D.M20
参考答案:B
______ works late, and is very busy when people go out to dinners. [ ]
A. Waiter
B. Nurse
C. Reporter
D. Bank clerk
商业银行办理商业汇票贴现业务,票据到期时,如果承兑人账上无款支付,贴现申请人账上亦无款支付时,贴现行借方科目应记( )。
A.贴现B.活期存款C.逾期贷款D.短期贷款