题型：填空题 经过研究发现，通常情况下南极附近的地磁场可作为匀强磁场看待。由于海流的影响，南极澳大利亚的戴维斯站在某段时间内不能得到常备物资，我国南极中山站及时提供了援助。在援助行动中，汽车由中山站出发驶往戴维斯站的某一段时间内，汽车在平整的冰面上匀速行驶，则在该段时间内，汽车后轮金属轮轴左右两端间的自由电荷( )A．将持续地从左向右运动B．将持续地从右向左运动C．正电荷持续地从左向右运动，负电荷持续地从右向左运动D．不会发生持续的定向运动 查看答案
题型：填空题 ．近来，中学聘请(employ)外教之风盛行(trend)，对此大家褒贬不一。请你根据下表内容及自己的观点写一篇短文。好处（advantages）弊端（disadvantages）你的观点(My opinion1.to make the school famous；2.to improve one’s spoken English；3.to know more about foreign culture1.to be expensive；2.not to get used to one’s way of life3.to know little about the way Chinese students learn languages.。。。。。。 Several years ago, when a foreigner appeared in China, many people would gather round and stare at him or her for a while. Nowadays, however, it’s common to see foreifgers here………..________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 查看答案