某同学将力传感器固定在小车上，然后把绳的一端固定在传感器的挂钩上，用来测量绳对小车的拉力，探究在小车及传感器总质量不变时加速度跟它们所受拉力的关系，根据所测数据在坐标系中作出了如图所示的a－F图象。

    It is sad but true that people die in earthquakes____falling furniture and bricks. Earthquake____(safe) is very important and there is more to it____just keeping buildings from falling down. So if your home is in an earthquake area, you should prepare carefully before the earthquake____(come).

    First, make sure you buy a house which is earthquake safe. All pipes should be fixed to the walls and all walls should be____(especial) thick and strong. Make sure the building has no____(break) windows and is well repaired.

    Second, look at the objects in your house. Objects____computers, televisions and lamps can be tied to tables or____(stick) to them so they won't easily move around. The cupboards,____many small things are stored, should have strong doors. Always remember,____(good) safe than sorry.

下列各句中，没有语病的一句是（ 　）