【简答题】WritingTask 1Answer the questions based on the following memo.MemoTo:AllemployeesFrom:JohnSmith,AdministrationOffice,ManagerDate:July14,2014Subject:FitnessCenterTheboardofdirectorsapprovedtheideaforan...
【多选题】如图所示,圆形区域内有垂直纸面向里的匀强磁场,磁感应强度为 B ,一带电粒子(不计重力)以某一初速度沿圆的直径方向射入磁场,粒子穿过此区域的时间为 t ,粒子飞出此区域时速度方向偏转 60° 角,根据上述条件可求下列物理量中的 ( )
【判断题】In IELTS writingTask 2, in order to support your opinion, it's important to write in a list as many ideas as possible as you think of them. 在雅思大作文写作中,为了支撑你的观点,你需要列举出尽可能多的论据。
【简答题】WritingTask 1Answer the questions based on the following memo.MemoTo:AllemployeesFrom:JohnSmith,AdministrationOffice,ManagerDate:July14,2014Subject:FitnessCenterTheboardofdirectorsapprovedtheideaforan...
【判断题】In IELTS writingTask 2, you should choose the most important part of the questions to write about. 在雅思大作文写作中,你需要选择作文题中最重要的部分进行写作。
【简答题】如图所示,圆形区域的半径为R,内有垂直纸面向里的匀强磁场,磁感强度为B,磁场下面有竖直方向的匀强电场。一质量为m、电量为q的粒子(重力不计),粒子由静止开始从A运动到B,速度方向偏转了60°。问: 粒子带何种电荷?
【多选题】如图 1 所示,半径为 R 的圆形区域内有垂直纸面向里的匀强磁场,圆形区域的左侧有一半径为 r 的金属线圈, R > r . 现让金属线圈沿两圆心的连线方向以大小为 v 的水平速度向右匀速运动,在线圈从左侧进入磁场区域开始到从右侧完全离开磁场区域的过程中,下列说法正确的是 ( )
【简答题】WritingTask 1Answer the questions based on the following memo.MemoTo:AllemployeesFrom:JohnSmith,AdministrationOffice,ManagerDate:July14,2014Subject:FitnessCenterTheboardofdirectorsapprovedtheideaforan...
【判断题】In IELTS writingTask 2, you are required to present your opinions of a selected topic and examples to prove your points. 在雅思大作文写作中,在你表明了你的观点后你必须用一些例子来证明你的观点。