题目内容

某型沿海客船,船长L=65.6m,全船采用单底、单甲板结构形式,该形式是否符合法规的要求?为什么?

查看答案
更多问题

从事产品认证活动的认证机构,还应当具备与从事相关产品认证活动相适应的()、()等技术能力。

内燃机车柴油机气缸中燃气所做的指示功毫无损失地传到动轮上所得到的机车牵引力称为()牵引力。

A. 轮周
B. 车钩
C. 指示
D. 柴油机

传染病患者经氧疗()小时,pO2仍<92%,或呼吸困难、呼吸窘迫改善不明显时,宜进行机械通气治疗。

A. 2
B. 4
C. 6
D. 8

A common rail engine has only one or two high pressure pumps in operation at the same()time, and the injection into each cylinder.

A. can’t be controlled very precisely
B. can’t be controlled as flexibly as the separate pump system
C. can be controlled as flexibly as the separate pump system
D. can be controlled more precisely and flexibly

答案查题题库