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- 1两个自然数的和是60,它们的最大公因数与最小公倍数的和是84,求这两个数.
- 2tom and jack often do their homework together.(否定句) tom and jack-—— often ___their homework
- 3You've never been to Peru,have you?No.跟You aren
- 4一个直角三角形的三边长是三个连续的偶数,这个三角形的面积是多少
- 5水果英文单词?
- 6I think it's ____useful advice 空中填不填冠词,如果填冠词,那么应该填什么
- 7ABCDE
- 8We have got many friends here.改为同义句
- 9在比例4:12等于8:24中,如果将第一个比的后项增加6,那么第二个比得前项怎样变化才能使比例成立?
- 10已知四个数,前三个数成等比数列,和为19,后三个数成等差数列,和为12,求这四个数?