【单选题】RSTP 中,配置消息携带的版本号为( )
【单选题】Is hardware accelaration important for video games? Why?
A.
Of course, video games emphasize realtime interaction, speed matters
B.
Absolutely yes! because video game companies need to sell their own machines
C.
No way, large memory is more important
D.
Not really, software accelaration can do the same thing
【单选题】砖砌平拱用竖砖砌筑部分的高度不应小于( )mm。
【简答题】在我国,属于二次能源的有()。 A海洋能 B小水电 C地热能 D氢能
【单选题】Why does the author mention 'the video coverage of the 1989 San Francisco earthquake' in Para. 2?
A.
To explain the relationship between media and consciousness.
B.
To interpret media effect on the consciousness and contact.
C.
To illustrate the importance of media.
D.
To introduce the topic.
【简答题】下列属于一次能源的有_________; 属于二次能源的有___________。 A.水能;B.电力;C.煤;D.煤气;E.原油;F.汽油;G.天然气;H.天然铀矿;I.生物质能;J.激光;K.太阳能;L.地热能等
【判断题】定量泵与变量马达组成的容积调速回路中,其输出转矩恒定不变