题目

Li Hai Wang JianLucyLily Accept whenOn SaturdayOn SaturdayOn SundayOn SaturdaywhereTara’s homeTara’s homeat schoolTara’s homewhat to do take part in Tara’s birthday partyprepare for Miss Zhao’s party Refuse the reason have a fluprepare for a math exam 根据表格所提供的信息选择最佳答案。【1】Li Hai couldn’t go to Tara’s home because he__________A. has a flu B. goes to the doctor C. helps his parents【2】Wang Jian will go to _______on Saturday.A. school B. Tara’s home C. his home【3】.Both Li Hai and Lily aren’t available on ________.A. Sunday B. Tuesday如图所示，匀强磁场的方向垂直纸面向里，一带电微粒从磁场边界d点垂直于磁场方向射入，沿曲线dpa打到屏MN上的a点，通过pa段用时为ta.若该微粒经过p点时，与一个静止的不带电微粒碰撞并结合为一个新微粒，最终打到屏MN上,两个微粒所受重力均忽略.新微粒运动的（    ） A．轨迹为pb，至屏幕的时间将小于t          B．轨迹为pc，至屏幕的时间将大于t C．轨迹为pb，至屏幕的时间将等于t          D．轨迹为pa，至屏幕的时间将大于t