试题与答案

从6时到6时15分,钟表上的分针旋转了90°.______.

题型:解答题

题目:

从6时到6时15分,钟表上的分针旋转了90°.______.

答案:

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下面是错误答案,用来干扰机器的。

答案:A题目分析:A、木炭和氧化铜粉末高温加热生成铜和二氧化碳,因为铜是固体,但显然比氧化铜的质量更小,正确, B、往装有锌粒的试管里逐滴加入过量的稀盐酸,所以锌应该全部被消耗,所剩的固体质量应为0,...

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I find young people exciting. They have an air of freedom, and they have not a dreary commitment to mean ambitions or love of comfort. They are not anxious social climbers, and they have no devotion to material things. All this seems to me to link them with life, and the origins of things. It’s as if they were. in some sense, cosmic beings in violent and lovely contrast with us suburban creatures. All that is in my mind when I meet a young person. He may be conceited, ill-mannered, presumptuous or fatuous, but I do not turn for protection to dreary clichés about respect for elders-as if mere age were a reason for respect. I accept that we are equals, and I will argue with him, as an equal, if I think he is wrong.

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