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【单选题】
_________ his membership card, Tim decided to make a phone call to check whether there was something wrong.A.
Not having received
B.
Not to receive
C.
Not received
D.
Having not received
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【简答题】目前国内应用最广泛的条形码是()A. 交叉二五码 B.UPC码 C.EAN码 D.库德巴码
【单选题】____ going to take on your next visit to Beijing?
A.
It is who that you are
B.
Who is it that are you
C.
It is who you are
D.
Who is it that you are
【简答题】数值修约 将1268修约到百位数,结果为_ 将10.5002修约到个位数,结果为_ 将12.1498修约到1位小数,结果为_
【简答题】的元 (123)(1234) 的阶是 ____