在外汇管制比较严格的国家，官定汇率就是（）。
A.实际汇率
B.中间汇率
C.市场汇率
D.单一汇率
参考答案：B
— Excuse me. Have you seen my bike?
— Look at that one next to the red bike. Is it _____?
A. hers
B. his
C. yours
D. mine
A．+→
B．→+
C．+→
D．→+
+
→
→
+
+
→
→
+
