A. 各阶段的设计结果 B. 设计输出(如文件、图纸、样件等) C. 向顾客提供的产品或样品 D. 以上都是
A. is used mostly by towing vessels B. has a maximum depth of 14 feet (4.3 meters) at MHW C. West Gap has a controlling depth of 24 feet D. is entered through the East Gap or the West Ga
A. 4 B. 3 C. 2 D. 1
A. 正确 B. 错误