判别明渠水流流态的依据是弗汝德数，当Fr>1则为（）。 - 查题网

>> 国家开放大学 / 水力学（B)

国家开放大学 / 水力学（B)

判别明渠水流流态的依据是弗汝德数，当Fr>1则为（）。

A. 急变流
B. 急流
C. 缓流
D. 临界流

积分

水力学（B)

参考答案：

点击查看答案

佳题速递：

19[单选题] 当人们认为自己的报酬与劳动之比，与他人的报酬与劳动之比是相等的，这时就会有较大的激励作用，这种理论称为：( )。 A.双因素理论 B.效用理论 C.公平理论 D.强化理论现代管理概论

41[填空题] 维护的副作用包括编码副作用、数据副作用和。河南理工大学

91、当用剖切平面剖切物体时，只画出物体与剖切平面相交部分的图形称为工程制图

串联文件的特点包括文件的增生和扩充不易操作系统

题干二、阅读理解：完形填空（每空10分）操作提示：通过题目中的下拉选项框选择恰当的词语补全填空。 Effects of Child Abuse and Neglect Child abuse may leave lasting scars. Some scars are physical, but some emotional scars may affect a child's whole life. The effects of child abuse include: Lack of trust. The child needs safety physically and 回答ABC正确正确答案是：C获得10.00分中的10.00分. If a child suffers from abuse, he won't feel safe, so it is very difficult for him to learn to trust people. This may lead to difficulties when the child has to 回答ABC正确正确答案是：A获得10.00分中的10.00分good relationship with the others, because he is afraid that someone may control him. Feelings of being “worthless”. If you tell a child over and over again that he is stupid or no good, it is very hard for him to overcome the feelings, and he will accept them. When he grows up, he may not work hard for a 回答ABC正确正确答案是：A获得10.00分中的10.00分 life, because he doesn't believe he can make it or he thinks of himself as worthless. Trouble in 回答ABC正确正确答案是：B获得10.00分中的10.00分 emotions. If an adult once suffered from abuse in his childhood, he can't express emotions safely. 回答ABC正确正确答案是：C获得10.00分中的10.00分, the emotions are coming out in unexpected ways. He may easily get angry, even turn to drugs to numb out the painful feelings. 1. A. emotional B. verbal C. emotionally 2. A. keep B. form C. have 3. A. better B. good C. nice 4. A. to control B. controlling C. control 5. A. In addition B. By contrast C. As a result反馈答案：1. C 2. A 3.A 4. B 5.C 解析：本题选C, 因为emotionally 和前面的physically 相对应，表示“儿童需要身心安全。“ 并且and是并列连词，它连接的前后两项的词性必须一致，其前面的一项是副词physically, 所以后面也应该是副词，所以本题选C. 本题选A, 因为根据句意，这里应该用keep 表示“与他人保持良好关系”。form 意为“形成”， have意为“拥有”，都和上下文的含义不符，所以本题选A. 本题选A, 因为根据常识人们通常是为了更好的生活而努力奋斗，所以只有better符合原文表达意思的需要。本题选B, 因为 in是介词，其后如果要接动词，必须用其动名词的形式，所以本题选B. 本题选C, 因为前后句是因果关系。 as a result 意为“结果…..“，引出事情的结果。by contrast意为 “相比之下”，其前后句是对比关系。in addition 意为”另外“，表示补充说明。选项C符合题意。人文英语1

设置数据源后，移动了Access数据库的位置，还能正常使用吗？互联网软件应用与开发(网络程序设计)