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【简答题】
如图，在平面直角坐标系中，以O为圆心，5个单位为半径画圆．直线MN经过x轴上一动点P（ m，0）且垂直于x轴，当P点在x轴上移动时，直线MN也随着平行移动．按下面条件求m的值或范围． （1）如果⊙O上任何一点到直线MN的距离都不等于3； （2）如果⊙O上有且只有一点到直线MN的距离等于3； （3）如果⊙O上有且只有二点到直线MN的距离等于3； （4）随着m的变化，⊙O上到直线MN距离等于3的点的个数还有哪些变化？请说明所有各种情形及对应的m值或范围．
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A.
what
B.
which
C.
that
D.
why
【简答题】She once again went through her composition carefully to all spellingmistakes) A) withdraw B) diminish C) abandon D) eliminate
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【单选题】The mere fact that free pratique has not been obtained ________ mean that the ship is not ready to load， if， in fact， free pratique can be obtained at any time and without the possibility of delaying ...
A.
does not
B.
is not
C.
are not
D.
has not
【单选题】She once again went through her composition carefully to ______ all spelling mistakes from it.
A.
eliminate
B.
withdraw
C.
diminish
D.
delete
【简答题】She once again went through her composition carefully to ________ all spelling mistakes from it. A) withdraw B) diminish C) abandon D) eliminate
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