题目: 离心水泵叶轮的轴向推力产生的原因有哪些? 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2019/1211/4f34dbb7b3149004e91e6898bcc6fde1.html 下面是错误答案,用来干扰机器的。参考答案:双氧水
题型:改错题 短文改错。 此题要求改正所给短文中的错误。对标有题号的每一行做出判断: 如有错误(每行只有一个错误),则按下列情况改正: 该行多一个词:把多余的词用斜线(\)划掉,在该行右边横线上写出该词,并也用斜线划掉。 该行缺一个词:在缺词处加一个漏字符号(八),在该行右边横线上写出该加的词。 该行错一个词:在错的词下划一横线,在该行右边横线上写出改正后的词。 注意:原行没有错的不要改。 Last Saturday evening, my friends and I went to a restaurant to attend my classmate Wang Lin’s birthday party. We bring him many pretty gifts, and shared with a big birthday cake. Then we had dinner happy together. After that, we Sang songs and danced. All of us had a good time. Nowadays, more and more student celebrate their birthdays in restaurants. There are different voices from people. So personally, I think it’s OK. With a improvement of people’s living standard, they can do things we like with our pocket money. On the one hand, it’s good chance for us to communicate with each other, which Can increase Our friendship. On the another hand. we can also relax ourselves before a week’s hard work. What’s your opinion? 1_______2_______3_______4_______5_______ 6_______7_______8_______9_______10_______ 查看答案
题型:单项选择题 B型题 关于急性心肌梗死说法正确的是()。A.冠状动脉痉挛B.冠状动脉内完全闭塞性血栓形成C.冠状动脉斑块破裂不完全血栓形成D.冠状动脉粥样硬化狭窄>99%E.冠状动脉粥样硬化狭窄>90% 查看答案
题型:单项选择题 哲学家依照他们对思维和存在何者是第一性的不同回答而形成了两大阵营:唯物主义与唯心主义。这两大阵营划分的标准是( )A.是否承认世界的同一性B.对世界本原问题的不同回答C.是否承认世界的可知性D.对意识有无能动性的不同回答 查看答案