Actually, girls can be _________ they want to be just like boys, whether it is a pilot, a nurse, or a general manager.

A．who

B．which

C．whatever

D．no matter what

为了减少温度和太阳光的影响而引起的误报警，安装使用中应让（）。

A、发射机安装于阴暗处

B、发射机与接收机轴线重合

C、发射机与接收机轴线垂直

D、接收机向下安装