单项选择题
A.USD20.00/METRIC TON CIF TOKYOB.USD20.00/TON CIF TOKYOC.USD20.00/METRIC TON CIF NINGBOD.USD20.00/TON CIF NINGBO
A.运输单据B.其他单据C.保险单据D.商业发票
A.L/C BY ACCEPTANCEB.L/C BY PAYMENTC.L/C BY NEGOTIATIOND.L/C BY MIXED PAYMENT