We can have problems when touching electrical devices with wet hands because ______.
Giải bởi Vietjack
Đáp án D
Chúng ta có thể gặp vấn đề khi chạm vào các dụng cụ điện với tay ướt bởi vì
A.bản thân nước là chất dẫn điện tốt
B. nước chứa quá nhiều các phân tử trung hòa
C. nước không chứa những phân tử mang điện làm cho nó dẫn điện tốt hơn.
D. nước hòa tan muối trên da chúng ta và trở nên có tính dẫn điện hơn.
Dẫn chứng: 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.
When compared with implements "flaked with a counter-clockwise rotation”, it can be inferred that "implements flaked with a clock-wise motion" are ______________.
Salt in its solid state is not able to conduct electricity because ______.
According to the passage, which of the following was an obstacle to the development of the icebox?
The author mentions “fish” in the first paragraph because __________________.
Which of the following could best serve as the title of the passage?
Which of the following is NOT considered an essential characteristic of architecture according to the passage?
The word "congested" in paragraph 1 is closest in meaning to ________________.
The word "substitutes" in paragraph 1 is closest in meaning to ________________.
For example, cheap oral-rehydration therapy developed in Bangladesh has dramatically cut the death (282)______ from childhood diarrhoea.
