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- 1will you attend the party to be held next sunday
- 2硝酸铁 氯化锶 硝酸
- 3英语翻译
- 4boys and girls,after finish your homework,please hand _____ in .请问此处填it 还是them?
- 5What time do you have your birthday perty?On January 3rd.(哪里错了)
- 6如图,已知AB=CD=AE=BC+DE=2,∠ABC=∠AED=90°,求五边形ABCDE的面积.
- 7如图,在△ABC中,AB=AC,D是BC边上的中点,∠B=30°.求∠ADC和∠BAD的度数.
- 8根据括号里所表达的意思,用着重号给句子标出重音.
- 9已知向量a=(2,3),b=(-1,2),若ma+nb与a-2b共线,则mn等于( ) A.-12 B.12 C.-2 D.2
- 10已知(-4x+3y)(-3y-4x)与多项式M的差是36y2+5xy,求M.