国际物品编码协会的英文简称是（）。
A.EAN
B.EIN
C.IEN
D.IEA
参考答案：A
_____Craig loves his students, he is very strict with them in their performances.
A．While
B．Whenever
C．As if
D．The minute
（）直对胶带集控装置、架线、有记录的牌板和电气设备洒水。
A、不准
B、可以
C允许
