一带电粒子在（重力不计）如图所示的电场中，在电场力作用下，沿虚线所示轨迹从A点运动到B点，下列说法中正确的是（   ）

                                                                                                                                          暮江吟
                                                                                                                                        唐·白居易
                                                                                                                一道残阳铺水中，半江瑟瑟半江红。
                                                                                                                 可怜九月初三夜，露似珍珠月似弓。