可安设在倾斜井巷任何地段的自动跑车防护装置为()。
A、吊挂式
B、绳压式
C、吸能式
D、保险叉
参考答案:A
Questions 1-4
What is a public school in England and Wales?()
A.A profit-making private school.
B.A non-profit-making independent school.
C.A state school that is funded by non-governmental sources.
D.A secondary school that is open to the majority of British students.
以下各项中,属于成熟期产品策略的是( )。
A.提供基本产品
B.提高产品质量且增加新功能,扩展产品线
C.改进品牌使品牌和式样多样化
D.逐步淘汰软项目