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【单选题】
悬挑式脚手架≤20m一挑,总高超( )m应专家论证A.
10
B.
20
C.
50
D.
30
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反馈参考答案：
举一反三
【简答题】在加注制冷剂前,应补充冷冻机油,,建议的补充量为:制冷剂净化时的排出量再加上( )ml
【单选题】I don’t know if I him this evening. If I him, I will give the novel to him.
A.
will meet, will meet
B.
will meet, meet
C.
meet, will meet
D.
meet, meet
【单选题】— I paid him 300 Yuan for the sneakers. — Oh. he charged you too much. You _______ them with half money. [ ]
A.
could have bought
B.
needn't have bought
C.
must have bought
D.
wouldn't have bought
【单选题】在加注制冷剂前,应补充冷冻机油,建议的补充量为:()
A.
冷剂净化时的排出量+20ml
B.
制冷剂净化时的排出量。
C.
制冷剂净化时的排出量+40ml
D.
制冷剂净化时的排出量+50ml
【单选题】在加注制冷剂前,应补充冷冻机油,建议的补充量为:( )
A.
制冷剂净化时的排出量15ml
B.
制冷剂净化时的排出量
C.
制冷剂净化时的排出量+25ml
D.
制冷剂净化时的排出量+50ml。
【单选题】--- I paid him 300 yuan for the sneakers． --- Oh, he charged you too much．You _____ them with half the money．
A.
could have bought
B.
needn’t have bought
C.
must have bought
D.
wouldn’t have bought
【单选题】Another 1000 yuan has been to him and by now he has owed 5000 yuan me. [ ]
A.
charged;to
B.
charging to;to
C.
charged for;with
D.
charged to;for
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