What is the middle rate for FRF/CHF, based on the middle rates (5.0145; 1.2570) for USD/FRF and for USD/CHF?
A.1.0024
B.2.0048
C.0.5012
D.0.2506

A.0145;
B.2570)
C.1.0024
B.2.0048
C.0.5012
D.0.2506

【参考答案】

D
解析：2506FRF/CHF=1.2570(USD/CHF)/5.0145(USD/FRF)，middle ......

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