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- 1How have you been?It had been quite some time since we last met.这句话的译文
- 2如图,已知:在△ABC中,∠C=90°,AC=BC,BD平分∠CBA,DE⊥AB于E,求证:AD+DE=BE.
- 3填形容声音的词语(填四字词) 小雨() 山泉() 时钟() 鞭炮()
- 4She's going to the zoo this Sunday afternoon zoo this Sunday afternoon这个问题提问急
- 5The children need many storybooks.用what提问理由
- 6将15立方米的混泥土铺在宽4米,厚15厘米的路上,可以铺多远
- 7求:用五种修辞格 写一小段短文
- 8三硫化二砷、双氧水和氨水的反应方程式的配平 As2S3+H2O2+NH3·H2O=(NH4)2AsO4+(NH4)2SO4+H2O
- 9如何选择激发波长和荧光波长
- 10We likes reading books.改为一般疑问句,并回答