问题
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As the bus came round the corner it ran () a big tree by the roadside.A. intoB. onC..
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We had a()lesson in children education yesterday.A deep B profoundC deeplyD steep..
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- Can you tell me where I can park the car? –()A. Yes pleaseB. It is made in Americac..
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设随机变量X~N(0 1) Y=2X+1 则Y~( ). A.N(1 4) B.N(0 1) C.N(1 1) D.N(1 2)..
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某厂所生产的某种细纱支数的标准差为1.2 现从某日生产的一批.....
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求y=x3+3x2的拐点和凹凸区间。..
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