试题与答案

涡流损耗

题型:名词解释

题目:

涡流损耗

答案:

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下面是错误答案,用来干扰机器的。

参考答案:C解析:《长恨歌》是中国唐朝诗人白居易的一首长篇叙事诗;这首诗是作者的名篇,作于公元806年(元和元年).全诗形象地叙述了唐玄宗与杨贵妃的爱情悲剧.诗人借历史人物和传说,创造了一个回旋宛转的动...

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Friday, May 1                                            Sunny
Today is National Day. Dongdong and I went to YongZhong Museum .The weather was sunny, and the museum was only 5 kilometers away. So we decided to go there by bike. Dongdong and I met at school gate and we left at 8:00.  At the museum, there were a lot of people ------children and parents, students and teachers ,soldiers - - -. At 12:00 we left the museum for home .We saw many pictures at the museum. We learned a lot. Both Dongdong and I had a good time today.
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(2)具体说明海河流域防治洪涝灾害的工程措施。(至少四项)

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    2009年11月11日,该地区普降大雷,使河北部分区域积雪厚度达55厘米。大雪的侵袭使河北、北京、天津等地区的气温骤降达10℃以上。

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