在冲压生产中。除冲裁、弯曲、拉深等工序外，还有一些成形工序如（）。
A.缩口
B.切舌
C.胀形
D.翻边
E.整形
参考答案：A, C, D, E
Now the size of our town is _______ than it was ten years ago.
A．as twice large as
B．twice large than
C．twice as much as
D．twice as large as
当使用TCP进行数据传输时，如果接收方通知了一个800字节的窗口值，那么发送方可以发送( )。
A．长度为2000字节的TCP包
B．长度为1500字节的TCP包
C．长度为1000字节的TCP包
D．长度为500字节的TCP包
