并行工程可从（）方面降低成本。

A、将错误限制在设计阶段

B、应用计算机系统

C、一次达到设计目的

D、减少作业人数

E、强调产品的整体优化

The record of tests and inspection of fire fighting equipment on board a ship must include（）.

A.the name of the person conducting the test

B.the weight of the charge

C.recommendations for the next test

D.All of the above