安全部门每月对安全活动记录本进行()次检查、考核并签字。
A、4
B、1
C、2
D、3
参考答案:B
He told us that he was tired and thirsty because he ________ in the desert for days.
A.walked
B.has walked
C.had walked
D.would walk
棉织品的贮存原则有()
A、分类存放
B、定点定量
C、确保品质
D、物卡相符