We can have problems when touching electrical devices with wet hands because .

* Hướng dẫn giải

Đáp án : B

Câu cuối: Many of the problems that occur when touching electrical devices with wet hands result from the ever-present salt that is left on our skin through perspiration and it dissolves in the water to make it more conductive -> muối từ mồ hôi trên da chúng ta hòa tan trong nước khiến nước dẫn điện hơn