Mary: Hello, this is Mary.

Mr White: Hello, this is Mr White, Peter’s father.

Mary: Hello, may I speak to Peter?

Mr White: Sorry, 小题1:________________.

Mary: Could you tell me when he’ll come back?

Mr White: 小题2:________________. Can I take a message for him?

Mary: Please tell him that I hope he will come to my birthday party next Sunday.

Mr White: Thank you for inviting Peter to your party. By the way, 小题3:________________?

Mary: It will start at half past five.

Mr White: 小题4: ________________?

Mary: I am going to have it at Sichuan Restaurant near his office.

Mr White: OK. 小题5:________________.

Mary: Thank you. Good-bye.

Mr White: Good-bye.

某公司有两个投资项目，其现金流量见下表，该公司的资本成本为10%。

要求：

1.分别计算两个方案的静态投资回收期。

（2）分别计算两个方案的会计收益率。