图中K、L、M为静电场中的3个相距很近的等势面（K、M之间无电荷）。一带电粒子射入此静电场中后，依abcde轨迹运动。已知电势φ_K＜φ_L＜φ_M，且粒子在ab段做减速运动。下列说法中正确的是

A．粒子带负电

B．粒子在bc段也做减速运动

C．粒子在a点的速率大于在e点的速率

D．粒子从c点到d点的过程中电场力做负功

-Let's play volleyball.

-__________. But my volleyball is not here.[ ]

A. It's under the desk

B. That sounds good

C. We are in the school

D. That sounds boring