皮皮学，免费搜题
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【单选题】
（）称闷曝。A.
只曝气不进水
B.
不曝气只进水
C.
鼓风曝气
D.
又曝气又进水
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
举一反三
【单选题】Mario used to be short, ______? [ ]
A.
doesn't he
B.
wasn't he
C.
isn't he
D.
didn't he
【单选题】He's been dead for 5 years, ______? [ ]
A.
isn't he
B.
wasn't he
C.
didn't he
D.
hasn't he
【单选题】若有定义: int a=11; float x=2.8, y=4.9;则表达式x+a%3*(int)(x+y)%-5/4的值是( )
A.
2.800000
B.
2.750000
C.
3.800000
D.
4.900000
【单选题】He’s fed the dog and the cat, _________? [ ]
A.
doesn’t he
B.
isn’t he
C.
wasn’t he
D.
hasn’t he
【简答题】--He's just back from work, ? -- . He is having a rest in the room. A. is he; No, he isn't B. has he; No, he hasn't C. hasn't he; Yes, he has D. isn't he; Yes, he isA....
【简答题】若有定义 :int a=11;float x=2.5,y=4.7; ,则表达式 x+a%3*(int)(x+y)%2/4 的值是 ( ) 。
【单选题】He was dissmissed. The reason is _____ he was careless and irresponsible.
A.
that
B.
why
C.
which
D.
because
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