以金融资产为交易工具而形成的供求关系和交易机制的总和是()
A、期权市场
B、货币市场
C、金融市场
D、债券市场
参考答案:C
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The subway timetables are well planned in Norway. Seldom ________ wait very long.
A.one does have to
B.does one have to
C.one has to
D.has one to
乘客电梯要求具有良好的()与通风设施