Please note that Item no．789 can be certainly promised for immediate shipment ____ receipt of your order.
- A、if
- B、whether
- C、upon
- D、at
正确答案:C
答案解析:有
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外销员
外销员
Please note that Item no．789 can be certainly promised for immediate shipment ____ receipt of your order.
微信扫一扫手机做题