题型:名词解释 请以Changes to my hometown 为题,根据下列要点提示,通过过去与现在的比较,写一篇100词左右的短文。注意:要点齐全,适当发挥。 In the pastAt presentEnvironment美丽清澈的河流湖泊清新的空气…现代许多高楼新大路Transport步行或骑车乘公交、出租车、小汽车等Living conditions小而旧的房子大而新的公寓 Changes to my hometownGreat changes have taken place in my hometown over the years. ___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 查看答案
题型:名词解释 如图所示,MN,PQ为同一水平面的两平行导轨,导轨间有垂直于导轨平面的磁场,导体ab,cd与导轨有良好的接触并能滑动,当ab沿轨道向右滑动时,则( )A.cd向右滑B.cd不动C.cd向左滑D.无法确定 查看答案