根据句意，选择括号中适当的词或短语填空。

1. Is this _____ (your/yours) eraser?

2. This is not _____ (their/theirs) school.

3. —Whose are those?

    —The new ones are _____ (my/mine).

4. _____ (Who's/Whose) desks are these?

5. The cat _____ (looks like/looks) a hat (帽子).

触电伤害的危险的程度与人体的电阻变化，通过人体电流的大小、种类、频率、持续时间和路径、电压的高低、人的身心健康状况均有关。