配置氢氧化钾电解液时，需要戴口罩、橡胶手套及（），穿橡胶围裙及长筒胶靴。
参考答案：防护眼镜
丹参醌类成分属于（）
A.苯醌
B.萘醌
C.菲醌
D.羟基蒽醌
E.蒽酚或蒽酮
A domestic investor is purchasing foreign bonds. Which of the following statements regarding the exchange rate risk and price movement of the asset is most accurate（）
A. The depreciation of both the asset and the foreign currency benefits the domestic investor.
B. The appreciation of both the asset and the foreign currency benefits the domestic investor.
C. The appreciation of the asset and the depreciation of the foreign currency benefit the domestic investor.
