题目内容

With reference to a radial piston pump, which one of the following statements is false?（）

A. Surrounding the fixed shaft is a hollow shaft
B. This hollow shaft carries radial bores
C. Each bore is fitted with a well-lapped plunger
D. There are always even numbers of bore

查看答案

搜索结果不匹配？点我反馈

更多问题

In the event of a casualty to a ship，who is responsible to make records available to the Coast Guard official authorized to investigate the casualty?（）

A. Officer in Charge，Marine Inspection
B. The person who caused the casualty
C. The company man
D. The owner

箱体是机床的基础零件之一，由于变速、换向等要求，箱体内装有轴、轴承、各种齿轮、离合器、操纵手柄、盖板等零件或组件，这些零件的装配精度，取决于箱体本身的加工精度。

A. 正确
B. 错误

战勤保障大队消防通用安全绳储备数量为20根。

A. 正确
B. 错误

某居民企业于2011年5月注册成立进行生产经营，2013年度生产经营情况如下： (1)