避雷器泄漏电流带电检测在使用传感器进行检测时，应戴（）。
A.绝缘手套
B.棉线手套
C.厚手套
D.可不戴手套
参考答案：A
先导泵用溢流阀的功用是（）。
A.保护液压系统
B.溢流定压
C.过载补油
D.减低系统压力
Which of the following statements about currency risk is most accurate Generally:（）
A. if the home currency appreciates against the foreign currency, each foreign currency unit will be worth more in terms of the home currency.
B. appreciation of the foreign currency is good for domestic investors who buy foreign securities.
C. if the foreign currency appreciates, the foreign cash flow will be worth less for the domestic investor.
