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- 1mike has breakfast at six in the morning(改为否定句
- 2-Is there a chair and two desk in your room?
- 3有三个连续自然数,前面两个的乘积比后两个数的乘机小86,这个三个数各是多少
- 4抛物线C:y=-2/1x^2+6,点P(2,4)、A,B在抛物线上,且直线PA,PB的倾斜角互补,求证直线AB的斜率为定值
- 5Li Ming will go to Beijing by train (改为同义句 )
- 6They fell in love with each other the first time () they met at a birthday party.1)不填 2) at which
- 7下列烯烃和HBr发生加成反应能得到1种产物的是( ) A.CH2=CH2 B.CH2=C(CH3)2 C.CH3CH=CH2 D.CH3CH2CH=CH2
- 8在下面的括号里分别填入一个成语,要求与前面的成语构成一种对偶..
- 932名同学乘车去公园,小轿车每车可以坐4人,面包车每车可以坐6人.如果每辆车都坐满,怎样租车才能正好一次都运到?
- 10将1mol CH4和一定物质的量的Cl2混合均匀使CH4和Cl2发生取代反应.