[单项选择题] We are in receipt of your letter of 1 st September, in forming us of the establishment of yo

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[单项选择题] We are in receipt of your letter of 1 st September, in forming us of the establishment of your L/C No. 894 ______ our S/C No. 90US9094.

A.against

B.under

C.covered

D.on

参考答案:

A