A. 数据结构 B. 数据类型 C. 数据项 D. 数据元素
A. wap.cccom B. www.cccom C. gprs.cccom D. wap.ccl
A. use lye or other mild detergent B. wash it with fresh water,dry and store it C. wash it with salt water D. use cleaning fluid on nylon,dacron and other synthetic line
A. 正确 B. 错误