There is someone _________ the door.[ ]
A. in
B. on
C. to
D. at
答案:D
I’ve won a holiday for two to Florida.I _____ my mum.
A.take
B.am taking
C.have taken
D.will have taken
直接参加产品生产工人的职工薪酬应计入( )科目。
A.生产成本
B.制造费用
C.管理费用
D.生产费用