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【简答题】
在坐标平面内,由不等式组 y≥|x-2 y≤-|x|+a 所确定的区域的面积为 5 2 ,则a =______.
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参考答案:
举一反三
【判断题】与别人交谈时应双眼一直看着对方。
A.
正确
B.
错误
【单选题】A: ________I help you? B:Yes, I'd like to have a Coke.
A.
Will
B.
Can
C.
Should
【简答题】( about / take / order / like) A: Can I _____ your order now? B: Yes, I'd like a coke.
【单选题】—Would you like tea or coffee? — ______ .I'd like some coke.
A.
Neither
B.
Either
C.
Both
D.
Each
【简答题】I'd like a Coke,________.
【单选题】-Would you like tea or coffee? -_, thanks. I'd prefer a Coke.
A.
both
B.
neither
C.
either
【单选题】A: I'd like some icecream. Do they have Coke only?B: ______
A.
Of course not. They have almost everything you can name.
B.
Sorry, I have no idea about what you said.
C.
You'd better choose what you like.
D.
You'd probably have to go by yourself.
【单选题】—Which do you prefer, orange juice or coke? —_____, thanks. I'd like just a cup of tea. [     ]
A.
Both
B.
neither
C.
None
【单选题】-_______? -Yes, please. I'd like a hamburger, a bag of chips and a coke.
A.
Can I help you
B.
Are you hungry
C.
How much do you want
【判断题】丙烯氨氧化生产丙烯腈的反应温度越高,丙烯腈收率越高。
A.
正确
B.
错误
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