试题详情
- 单项选择题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
- C
关注下方微信公众号，在线模考后查看
热门试题
- As the goods ____ within the sco
- for payment． we require an irrev
- We confirm ____ purchased 2,000
- Every year, we export sunflower
- In your letter of April 10, you
- We expect ____ large orders from
最新试题