保管期间对货物的检查主要包括()。
A.数量检查
B.质量检查
C.检查保管条件
D.检查安全
参考答案:B, C, D
(2013·福建,22)________ basic first-aid techniques will help you respond quickly to emergencies.
A.Known
B.Having known
C.Knowing
D.Being known
煤炭的品种不同于煤种。