A:Why do you want to see the lions?
B:What do you want to do?
C:When do you want to go?
D:Why do you like the lion?
如图所示,实线是某电场中的电场线,虚线是一个带负电的粒子仅在电场力作用下的运动轨迹,若带电粒子是从a处运动到b处,以下判断正确的是( )
跨经度最广的大洲…………………………………………………( )|
①大脑皮层 ②小脑 ③下丘脑 ④脑干 ⑤脊髓