题目

I thought her to be an honest girl ________ I saw her. A. for the first time                                    B. every time when C. the first time                                                D. by the time 答案：【解析】选C。考查连词的选择。句意：我第一次见她时就认为她是个诚实的女孩。the first time可用作连词，引导时间状语从句。如图所示为云室中某粒子穿过铅板P前后的轨迹．室中匀强磁场的方向与轨迹所在平面垂直（图中垂直于纸面向里）?由此可知此粒子（ ）A．一定带正电B．?一定带负电C．从下向上穿过铅板D．?从上向下穿过铅板