上海的某钢铁公司和陕西的某矿业公司都是国有企业，矿业公司长期供应钢铁公司原料，双方在
题型：多项选择题 案例分析题
问题：
上海的某钢铁公司和陕西的某矿业公司都是国有企业，矿业公司长期供应钢铁公司原料，双方在经济交往中发生了以下支付结算关系。请问：
如双方申请开户银行采取托收承付结算，还需符合以下条件（）。
A.结算的款项必须是商品交易，以及因商品交易而产生的劳务供应的款项。
B.必须签有购销合同
C.合同中约定使用托收承付结算方式
D.每笔结算金额的起点为5000元
题型：多项选择题 案例分析题
按要求改写下列句子，每空一词。
1. What you said made me think of my dog's death. (改为同义句)
What you said ________ ________ _______ my dog's death.
2. They prefer staying at home to going out on Sundays. (改为同义句)
They would like _______ _______ at home _______ _______ go out on Sundays.
3. He is interviewing a middle school student. He is called Bob. (合并为一句)
He is interviewing a middle school student ________ ________.
4. The story is very popular. Tom has just told it. (合并为含定语从句的复合句)
The story ________ Tom ________ just ________ ________ very popular.
5. The tall man is Liu Jian's father. He is smoking over
there. (合并为含定语从句的复合句)
The tall man ________ ________ ________ over there ________ Liu Jian's father.