题目内容

"Mr. Going-to-do" ______.

A. always says he is going to do something, but he never does it
B. always talks as much as he does
C. always talks a little but does a lot

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已知x2-1=3x，则多项式3x3-11x2+3x+2的值为()。

A. 1
B. 2
C. -1
D. 0
E. 土1

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You should have been more patient ______ the customer, I'm sure that selling him the colour TV set was a possibility.

A. of
B. for
C. with
D. against

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在实数范围内将(ax+by)2+(ay-bx)2+c2x2+c2y2分解因式，得()．

A. (a+b+c)(x2+y2)
B. (a2+b2+c2)(x2+y2)
C. (a2+b2-c2)(x2+y2)
D. (a2+b2+c2)(x2-y2)
E. 以上答案均不正确

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The last paragraph implies that RFID technology ______

A. will not be used for such matters as buying milk
B. will be widely used, including for buying milk
C. will be limited to communication uses
D. will probably be used for pop music

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"Mr. Going-to-do" ______.

A. always says he is going to do something, but he never does it B. always talks as much as he does C. always talks a little but does a lot

已知x2-1=3x，则多项式3x3-11x2+3x+2的值为()。

You should have been more patient ______ the customer, I'm sure that selling him the colour TV set was a possibility.

在实数范围内将(ax+by)2+(ay-bx)2+c2x2+c2y2分解因式，得()．

The last paragraph implies that RFID technology ______

A. always says he is going to do something, but he never does it
B. always talks as much as he does
C. always talks a little but does a lot