无论是在金本位制度、还是纸币流通制度下决定汇率的基础都是货币实际价值的对比，（）不依外汇市场供求波动而波动，不是市场实际外汇买卖的汇率而应是买卖外汇的基础。
A. 名义汇率
B. 实际汇率
C. 浮动汇率
D. 官方汇率
查看答案
By regulation，your cargo vessel must have（）.
A. sufficient facilities for the crew to wash their clothes
B. a wash basin in each room
C. separate toilet facilities for engineers where their number exceeds six
D. All of the above
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