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科目:初中數(shù)學 來源: 題型:
A、如果s=vt,那么v=
| ||
| B、如果6x=2,那么x=3 | ||
| C、如果x-3=y-3,那么x=y | ||
| D、如果a=b,那么a±b=b±a |
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科目:初中數(shù)學 來源: 題型:
| A、-6-3+7-2=-4 |
| B、6-3-7-2=-6 |
| C、6-3+7-2=8 |
| D、6+3-7-2=0 |
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科目:初中數(shù)學 來源: 題型:
| 5 |
| x |
| A、y1>y2 |
| B、y1<y2 |
| C、y1=y2 |
| D、不能確定 |
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