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- 1描写山的诗句
- 2用梦冉这两个字写出两句七字诗、然然也成、急需啊、求大神帮忙啊
- 3观察下列解题过程,解方程x+2分之x-x+1分之1=1,方程两边同乘以(x+2)(x+1),得x(x+1)-(x+2)=1.
- 4括号内填近义词:风()雨()
- 5this book is less interesting than that one .(同义句)that book is 两个空 than this one.
- 6照样子换偏旁并组词.
- 7There are thirty students in our class.Twenty are girls,_______student.
- 8某中学为帮助贫困山区的失学儿童重返校园,要在全校开展一次献爱心捐款活动,请你为这次活动作一条校园标语(至少用一种修辞手法),
- 9求函数y=cos²x的二阶导数?
- 10工厂工人加工一批零件,如果每天做50个,要比原计划晚8天完成;如果第天做60个,就可以提前5天完成,那么,这批零件共有_个.