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【单选题】
以下不属于自动识别技术的是( )。A.
电子数据交换
B.
条码技术
C.
射频技术
D.
磁条技术
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举一反三
【简答题】阅读理解。 Do you need friends? I'm sure your answer is 'Yes, of course. Everybody does!' You need friends when you play and when you work. If you have friends, you will feel happy. If you have no friends....
【单选题】'Do you any help when you do your homework?' 'Yes, I ' [ ]
A.
needing; need
B.
to need; do
C.
need; do
D.
need; need
【单选题】—Kangkang, the new term is coming, do you think you need a schoolbag? —Yes, I'm going to Huangshang Supermarket to buy this afternoon. [ ]
A.
it
B.
this
C.
one
D.
that
【单选题】Do you need to measure oxygen levels before entering an enclosed space?
A.
No
B.
Yes, always
C.
Yes, but not if you ventilate properly first for 24 hours
D.
Not if you measure for toxic gases
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