用适当的介词填空。

1. I was invited _______ Mary's birthday party last week.

2. If you want to go to another country, you should first know _______ the country.

3. There's no similar expression _______ "manman chi" _______ English.

4. _______ the start of a meal, the Chinese like to ask the guest to eat well.

5. Soup is usually eaten _______ a spoon.

标准体系的评价内容包括体系的（）和适用性。

A.科学性

B.先进性

C.完整性

D.协调性