当人体触及漏电设备的外壳时，加于人手与脚之间的电位差称为接触电压。
参考答案：对
During the election, the chairman again __________ his position on the issue that he would stick to the current economic policies.[ ]
A. clarified
B. classified
C. purified
D. simplified
温胆汤的君药是（）
A.礞石
B.半夏
C.沉香
D.竹茹
E.胆南星
