题目

补全对话A. Who did you go there with?B. When did you go there?C. Yes, we did.D. Where did you go last weekend, Vera?E. How was your weekend?M: （1）W: I went to Hangzhou and Suzhou.M: （2）W: On October 3rd.M: （3）W: My parents, my aunt and uncle.M: （4）W: It was excellent.M: Oh, great! Did you take any photos there?W: （5）M: Let me have a look at them when they come out (冲印出来). W: Sure.如图所示，厚度均匀的木板放在水平地面上，木板上放置两个相同的条形磁铁，两磁铁N极正对．在两磁铁竖直对称轴上的C点固定一垂直于纸面的长直导线，并通有垂直纸面向里的恒定电流，木板和磁铁始终处于静止状态，设两条形磁铁和木板的总重力为G，则（ ）A.导线受到的安培力竖直向上，木板对地面的压力大于GB.导线受到的安培力竖直向下，木板对地面的压力小于GC.导线受到的安培力水平向右，木板受到地面的摩擦力水平向左D.导线受到的安培力水平向右，木板受到地面的摩擦力水平向右