题目内容
(请给出正确答案)
[主观题]
I wonder why ______ impossible for you to do the work by yourself.A.youB.you areC.it isD.y
I wonder why ______ impossible for you to do the work by yourself.
A.you
B.you are
C.it is
D.you were
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I wonder why ______ impossible for you to do the work by yourself.
A.you
B.you are
C.it is
D.you were
第1题
船舶空压机正常工作时,各级排出压力随储气瓶压力的升高而:
A.增加
B.减少
C.不变
D.脉动
第3题
公斤空气中的饱和含湿量是随温度的升高而增多,随压力的增加而()。
A.增加
B.减少
C.不变
第5题
第6题
技术状态良好的空压机将空的气瓶打满至额定排气压力过程中的平均排气量________公称排气量。
A.大于
B.等于
C.小于
D.B或C
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