在Windows 98环境下，文件的长文件名采用的字符编码标准是( )。A．ASC

一块长方形地，长48米，长是宽的4倍，它的宽是多少米？如果在这块地的四周围上篱笆，篱笆长应是多少米？

焊接金合金时宜采用的焊料为（）

A.银焊

B.金焊

C.非贵金属焊

D.铜焊

E.锡焊

根据句意和汉语注释，写出单词的正确形式。

1. His coming can bring many __________ (好处) to the villagers.

2. We all know that some birds fly to __________ (南方的) places in winter.

3. Jim __________ (借) me a book about animals three days ago.

4. Many plants only grow well in ___________ (自然).

5. Noise is unpleasant, ___________ (尤其) when you are trying to sleep.

世界现代旅游业迅速发展的原因是什么？