【简答题】Why were cracks in old houses not a big concern? A) Because indoor cleanliness was not emphasized. B) Because energy used to be inexpensive. C) Because environmental protection was given top priority....
【单选题】A big storm ______ the town at 2 p.m., leaving a trail of damaged houses, injured people and dead animals.
【单选题】如图所示,动滑轮重2 N,弹簧秤的示数为10N,则拉力F和物体的重为
【简答题】如图所示,重为100N的物体在水平方向上以1m/s的速度做匀速直线运动,弹簧秤求数为5N(不计绳与滑轮的摩擦).求: (1)作用在滑轮上的水平拉力F; (2)拉力F的功率.
【单选题】操作系统有多种类型,其中在IBM-PC机上的操作系统称为()。
【单选题】In the big earthquake all their houses were ______, so they had to build new ones.
【单选题】. Only_______of the houses in the town________ not destroyed in Wenchuan big earthquake.
【判断题】值: 题目 : 众物智联物流与供应链集团总裁要组织运营部门中层领导参加的运营分析会,总裁办公室助理小张需要以总裁办名义撰写并发布会议通知。使用 “ 正式指数 ” 判断,该文书的得分接近 0 分,为正式文书。 选项 :