服务目标追踪的两种方式（）A、过程优化 B、过程控制 C、结果检查 D、结果修正

Dear Mrs. Johnson,

It is a pleasure to write this letter because it gives me an opportunity to tell you how much I enjoyed my stay with your family last week. It was my first visit to an American family and, at first, 小题1: _________________. When I saw you and your children waiting for me at the station with warm smiles of welcome on your faces, 小题2: _________________. You and your wonderful family put me at ease right away.

There are many happy memories of the weekend, and I will keep them with me forever. Above all, I will remember that you made me feel at home. There were so many new and different things for me to see and do. I particularly enjoyed driving through the countryside with Mr. Johnson and you and seeing the charming colors of the leaves on the trees. I liked playing baseball with your sons, Jimmy and Joey. 小题3:________________. Tell them I will teach them how to play soccer next time. I also had a good time at the city square dance on Saturday night. It was my first square dance, and I cannot forget how friendly and kind everyone around was.

I am back at school again now and I am very happy because I know now a real American family and it is one of the nicest families I have ever met. Because my English is still not very good, 小题4:_______________________. I can only say "Thank you" and hope that someday you will visit my country and I can return your hospitality (款待).

Yours sincerely

Jack

蔡伦主要是从哪个方面来改进造纸术 [ ]

A．加工工具

B．生产工艺

C．原材料

D．生产者

以下关于劳务派遣说法错误的是（ ）。

A．雇主是劳务派遣单位

B．雇员是被派遣的劳动者

C．是一种组合劳动关系

D．本质特征是雇佣和使用相结合

利率期货是以各国汇率为标的物的期货合约，它用来规避汇率波动所引起的风险。( )

超压试验是工作压力的多少倍？