【单选题】Reasons for a nation to trade with other nations in the world can be ( )
【多选题】____,____,____ and many other reasons are all responsible for the boom in international trade.
【简答题】Social reasons for trigging depression are ______.
【判断题】一般说来 理想气体的定压热容量和定容热容量只是温度的函数 .
【多选题】Asking for reasons
A.
Why do you think that?
D.
What are your reasons for saying that?
E.
Can you explain why you think so?
【简答题】数据库设计分为概念设计、逻辑设计和物理设计,其中E—R图是用于【 】设计的常用工具。
【简答题】在数据库的概念结构设计中,常用的描述工具是上【 】。
【多选题】What are the possible reasons of a delayed flight?
A.
poor weather conditions
B.
maintenance of aircraft