题目

如图所示，倾斜放置的平行板电容器两极板与水平面夹角为θ ，极板间距为d，带负电的微粒质量为m、带电量为q，从极板M的左边缘A处以初速度v0水平射入，沿直线运动并从极板N的右边缘B处射出，则 A．微粒达到B点时动能为 B．微粒的加速度大小等于  C． 微粒从A点到B点的过程电势能减少 D．两极板的电势差— Where is her handbag, do you know? — She remembered ______ her handbag home, but in fact it ______ in her office. A. to bring; left B. to bring; was left C. bringing; left D. bringing; was left