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- 1长度为4,5,6的三条线段能否组成三角形
- 2There was a fire last night ,but the firemen put it out soon.为什么选put it out 还有例句
- 3在△ABC中,AB=25,AC=4,BC=2,以AB为边向△ABC外作△ABD,使△ABD为等腰直角三角形,求线段CD的长.
- 4英语翻译
- 57.We __very early so we packed the night before.A.leave B.had left C.were leaving D.have left
- 6We have a holiday on the first seven days of October in China.
- 7小红步行上学,每分钟走60米,离家11分钟后,妈妈发现小红的数学书忘在家中,立即带着数学书以每分钟280米的速度去追小红,妈妈出发_分钟后追上小红.
- 8若3a2-a-2=0,则5+2a-6a2=_.
- 9ABCDEFG总共26个英文字母,如果ET走了,还剩下多少个英文字母?
- 10I am sorry,I can not go to your party