填空。

A: 1.________ that?

B: It's Kay, my 2.________ friend. 3.________ 4.________, Kay.

C: Morning. B: This is Amy, Kay.

A: Nice to 5.________ you, Kay.

C: Nice to meet you, 6.________. Sit 7.________, please.

A/B: 8.________ 9.________.

C: That's all 10.________.

企业销售与收款业务循环的起点是：

A．发运商品

B．批准赊销

C．审批销售退回与折让

D．处理客户订货