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【判断题】
反馈控制在问题发生的时候对它们进行纠正。
A.
正确
B.
错误
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【简答题】TDMA
【简答题】TDMA帧
【单选题】技师甲说发动机真空度过低将造成换档粗暴;技师乙说加速不良的发动机会引起换档延迟。谁正确?
A.
甲正确
B.
乙正确
C.
两人均正确
D.
两人均不正确
【单选题】在过盈配合或过渡配合当中,孔的最小极限尺寸减去轴的最大极限尺寸,应为()
A.
最小间隙
B.
最大间隙
C.
最小过盈
D.
最大过盈
【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】根据文意及提示补全对话。 A:Hi, you are a vegetarian (素食者). May I know w  1 ? B:You know I'm a model. I have to be very c  2 with my appearance(外表). A:What do you usually h  3 for meals? B: Rice with vegetables, o...
【单选题】TDMA
A.
频分多址
B.
时分多址
C.
码分多址
【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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