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- 1口+匹——这个字念什么?
- 2I'm tired .Let's stop _____(have) a rest
- 3怎么求正多边形内接圆的半径啊
- 4In autumn,it's _______ and we can fly kites with the wind.
- 5已知函数f(x)=sin^2x+2sinxcosx+3cos^2x,x∈[0,π/2],(1)求函数的值域,并求函数取得最大值是x的取值
- 6Is this _____backpack over there A.his B.she C
- 7品读冰心的哲理小诗:‘成功的花,/人们只惊羡她现时的明艳!/然而当初她的芽儿,/浸透了奋斗的泪泉,/洒遍了牺牲的血雨.’诗人把【 】比喻‘花’;把【 】比喻花的‘芽儿’;把【 】比喻为培育花的‘泪泉’
- 8设随机变量ξ的密度函数为f(x)={①2/πcos^2x,-2/π
- 9一水合氨和氨水什么区别
- 10Jenny want's to get job.she's tired of working here.A.a B.one C.the D.another