题目

He imagines that people don’t like him, _____ they do.     A. and                                                      B. then     C. so                                                        D. but 答案：D如图所示，质量为m、带电量为+q的滑块，绝缘斜面匀速下滑，当滑块滑至竖直向下匀强电场区时，滑块运动的状态为（ ）A.继续匀速下滑B.将加速下滑C.将减速下滑D.上述三种情况都可能发生