丝绸之路是一个文化符号，代表（）。
A、交往
B、和平
C、繁荣
D、友谊
参考答案：A, B, C, D
There were about six __________ students in the school building during the earthquake, and __________ of them
didn't run out.[ ]
A. hundred; two third
B. hundred ; two thirds
C. hundreds; two thirds
D. hundreds; two third
在OutputStream类的常用方法中哪个是清空输出流的方法
A．flush( )
B．close( )
C．write(int
D．write(byte b[ ] )
