在安全检查仪器传送带上正确摆放受检行李物品是()的职责之一。
A.验证检查员
B.前传、维序检查员
C.人身检查员
D.值班领导
参考答案:B
—How do you find Qingdao, Mary?
—It’s a beautiful seaside city. I have ________it for my next holiday.
A.decided on
B.tried on
C.taken on
D.carried on
酸性蓄电池由()组成。
A.正、负极板
B.隔板
C.电解液
D.电池槽