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- 1英语中副词、名词、形容词、动词、冠词后一般接什么词?
- 2求教一道题,麻烦要过程,谢谢 设xy=xf(z)+yg(z),xf'(z)+yg'(z)≠0,其中z=(x,y)是x和y的函数
- 3our 怎么读?
- 4Jack described his father,who _____a brave boy many years ago,as a strong-willed man.
- 5He likes to write stories and wants to be a ______.(report)
- 6两个无理数相加、加减、相乘、相除,结果一定还是无理数吗?举例说明.
- 7This is the house __ he once lived __ when he was a child.A.which/in B that;/ 为什么不选B?
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- 9设二次函数f(x)=ax2+bx+c(a≠0),如果f(x1)=f(x2) (其中x1≠x2),则f(x1+x22)等于( ) A.-b2a B.-ba C.c D.4ac−b24a
- 10You're never really done for as long as you've got a good story and someone to tell it to. 翻译