问题
单项选择题
You ______ 1/3 down payment with the order and the balance to be paid against a confirmed irrevocable L/C.
A．ask
B．call
C．call on
D．call for
答案
参考答案：D
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You ______ 1/3 down payment with the order and the balance to be paid against a confirmed irrevocable L/C.
A．ask
B．call
C．call on
D．call for
参考答案：D