在一幅比例尺是16000000的地图上量得南京到北京的距离是15厘米，一架上午1

现时义务是指企业在现行条件下已承担的义务。或有负债作为现时义务，其特征在于该现时义务的履行很可能导致经济利益流出企业。

阅读短文，根据其内容简要回答问题。

       During the Second World War it was very difficult for ordinary people to travel by plane because the

seats were needed for important government people and high rank (等级) officers in the army.

       Mr. Brown worked for the government during the war. He acted as an ordinary cook but in fact he was

doing important secret work, and nobody was allowed to know how important he was except for a few very

top people. 

       One day Mr. Brown had to fly to London to give a report to some important people in the government

and army. He placed (预订) an order for a seat in a plane. But when Mr. Brown was about to get onto the

plane, an important army officer came to the airport at the last minute, and Mr. Brown's seat was given to

the officer, so Mr. Brown had to wait for the next plane which was to fly to London two days later.

       It was not until he reached London that the high rank officer discovered that the man whose seat he had

taken was the very one whose report he had flown to the city to listen to!

1. Is it easy or hard for ordinary people to travel by plane during the Second World War?

      ____________________________________________________________________

2. Who knew Mr. Brown's real job?

      ____________________________________________________________________

3. Why was Mr. Brown's seat given to the army officer?

      ____________________________________________________________________

4. How do you think the officer would feel when he saw Mr. Brown in London?

      ____________________________________________________________________

5. When did the army officer find he had taken Mr. Brown's seat?

      ____________________________________________________________________

下列对建国初期土地改革意义的叙述，错误的是（　 ）

A．废除了两千多年的封建土地剥削制度　

B．建立了土地公有制度

C．解放了农村生产力

D．消灭了地主阶级

下列因素：①溶质种类；②溶剂种类；③溶质质量；④溶剂质量；⑤温度；⑥压强；⑦搅拌、振荡．其中与固体溶解度无关的是（　　）

A．①②⑤

B．④⑤⑥⑦

C．③④⑥⑦

D．⑤⑥

派生分立指原公司将其财产或业务的一部分分离出去设立一个或数个公司，原公司不存在。（）