（）是均匀流的特性 A.过水断面为曲面  B.过水断面的形状沿程不变  C.同一流线

唐朝工匠李春设计和主持建造的赵州桥是世界上现存的最古老的石拱桥。[ ]

— Paul invited us to take part in a party tomorrow evening.

— ______ Is tomorrow his birthday? [ ]

A. Why not?

B. What a good idea!

C. What for?

D. That's all right.

—____

—Some rice, please.

A．What about something to drink?

B．Would you like to have lunch with me?

C．May I take your order?

D．Can I help your order?

勘验、检查笔录是对勘验、检查过程与结果的__________。

根据给定资料，结合材料中的有关理论和问题，就如何进一步深入开展民办非企业单位的自律与诚信建设活动，提出你的见解。要求；内容详实，结构完整，具有可操作性，篇幅在1 000字左右。