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【简答题】TDMA帧
【单选题】__ I do not know what I ___________ without the suitcase you lent me. __ Glad to have been of some help to you.
A.
would have done
B.
would do
C.
should have done
D.
should do
【单选题】－Are you sure you have to? It’s been very late.－I don’t know ________ I can do it if not now.A．h
A.
34. －Are you sure you have to? It’s been very late. －I don’t know ________ I can do it if not now. A．how
B.
what
C.
when
D.
That
【简答题】Assistant: Can I help you? Jane:小题1:______________________________. Assistant: May I know who it is for? Maybe I can give you some help. Jane: For myself. You know, I have a two-month holiday. I want ...
【单选题】肉制品中的多氯联苯主要来源于(2009真题上182)
A.
工业三废污染
B.
饲草种植中农药残留
C.
畜禽养殖中兽药残留
D.
食品流通中掺杂掺假
E.
食品加工中添加剂使用
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