— What makes them ______ we come from Australia?

— The way you speak. [ ]

A. to think

B. think

C. thinking

下列说法中符合安全用电原则的是[ ]

A．控制灯泡的开关应接在火线上

B．高压带电体不能接触，但可以靠近

C．保险盒内熔丝熔断，可用铜线替代

D．家用电器失火时，先灭火，后切断电源