建筑工程一切险的保险金额应为( )。A．保险标的建筑工程的机械设备费 B．保险标的 发布时间：2017-05-26 07:21 │ 来源：www.tikuol.com 题型：单项选择题 问题： 建筑工程一切险的保险金额应为( )。A．保险标的建筑工程的机械设备费B．保险标的建筑工程的直接费C．保险标的建筑工程总成本D．保险标的建筑完成时的总值
题型：单项选择题 完形填空。 There is a piece of good news for the children in the countryside. We may still remember the girl __1__big eyes. Her big eyes are __2__ us her dream: I want to __3__! In China, there are still __4__ girls and boys like her. They want to go to school, but their __5__ are too poor. If the family has two or three children, it is harder __6__ all the children to go to school. So the parents often ask __7__ to stay at home,and boys to go to school. Now they needn't worry about the money for their children's education. From 2006, children can go to school for free (免费) in China. They don't have to __8__ money for the books and other things. Some of them can even get money from the government to make their life __9__. Soon, all the poor children can go to school for free. All families are very happy with the news. It is__10__ great!( )1. A. with ( )2. A. saying ( )3. A. go to school ( )4. A. a lot ( )5. A. schools ( )6. A. for ( )7. A. teachers ( )8. A. spend ( )9. A. better ( )10. A. not B. on B. telling B. go to bed B. few B. cities B. of B. boys B. pay B. worse B. never C. of C. speaking C. go to work C. a lot of C. families C. with C. son C. take C. longer C. really D. has D. talking D. go to hospital D. much D. country D. to D. girls D. use D. well D. real 查看答案
题型：单项选择题 如图所示，一直角槽（两槽面间夹角为90°）对水平面的倾角一个横截面为正方形物块，两相邻表面与两槽面接触，且恰好能沿此槽匀速下滑，物块与槽两间动摩擦因数相同，两槽面关于槽的底线对称，则动摩擦因数值为（ ）A．B．C．D． 查看答案
一个横截面为正方形物块，两相邻表面与两槽面接触，且恰好能沿此槽匀速下滑，物块与槽两间动摩擦因数相同，两槽面关于槽的底线对称，则动摩擦因数
值为（ ）
