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- 1He did his homework yesterday evening.(变为一般疑问句)
- 2再( )里填运算符号,或括号,使等式成立4/1( )4/1( )4/1( )4/1( )=8/1
- 3用“不要.而要.”造句 用“.无不.”造句 (50字以上)
- 4联想和想象的古诗
- 5新年是New Year's Day还是Spring Festival
- 6在四棱锥P-ABCD中,若PA⊥平面ABCD,且四边形ABCD是菱形,求证:平面PAC⊥平面PBD.
- 7急 英语达人们you__get there by bus(needn't don't need to)括号里选哪个啊
- 8求函数y=[2arcsin(x/3)]+(π/3)的定义域和值域
- 9We had enough food(改为否定句)
- 10用压强、密度、平均摩尔质量作标准判断化学平衡的条件是什么?