一般说来，随着高速铁路网建设的不断推进，长途汽车客运量呈下降趋势。（  ）

如图所示，用甲、乙两种装置将物体匀速提升相同高度，物体重均为10N，滑轮重均为1N，不计绳重，所用的拉力分别是F₁和F₂，机械效率分别是η₁和η₂，则F₁____F₂，η₁____η₂．（选填“＞”、“＜”或“=”）

面对校园暴力伤害，下列做法正确的是（    ）

①忍气吞声，以免事态进一步扩大                      ②及时将情况告诉家长、老师

③理智回避，尽可能不与对方发生直接冲突      ④提醒对方所作所为是违纪违法行为

根据短文内容，选择正确答案。
A
    One day, Mr. and Mrs. White went shopping by car. They stopped their car near a store. They bought a lot of things and they wanted to put them in their car. But Mr. White couldn't open the door of the car. “Let's ask a policeman for help.” said Mrs. White. They asked a policeman to help them. The policeman was very friendly to help them open the door of the car. Just then a man came up and shouted, “What are you doing with my car?” Mr. and Mrs. White took a look at the number of the car. It was not their car.

数轴上，﹣4在﹣3的（   ）边．