油船上,灰铸铁管、阀和附件可用于()。 ["Ⅰ级管系","Ⅱ级管系","露天甲板上压力大于1.6Mpa的货油管","货油舱内的货油管"]
计算机网络的资源共享功能包括:() ["硬件资源和软件资源共享","软件资源和数据资源共享","设备资源和非设备资源共享","硬件资源、软件资源和数据资源共享","硬件资源、软件资源"]
关于心脏神经官能症的描述错误的是() ["本症多发于老年女性","由于自主神经功能失调,致心血管功能紊乱而引起","该病属于一种临床综合征","发病多与精神、情绪等有关","过度疲劳可引起心脏神经官能症"]
梗死的原因不包括() ["血栓形成","动脉栓塞","血管受压闭塞","静脉淤血","动脉痉挛"]
动脉粥样硬化导致器官病变最常见的类型为()。 ["脑动脉硬化","冠心病","高血压病","心律失常","高血压性心脏病"]
什么是园林艺术?