Windows7桌面上有某个应用程序的快捷方式图标,要运行该程序,可以()。 ["右击图标","单击图标","右键双击图标","双击图标"]
全双工以太网在()上可以是效率达到100%。 ["输入","输出","两个方向","单方向"]
在下列电路中,属于非线性电路的有()。 ["整流器","检波器","音频放大器","调幅电路","谐振功率放大器"]
A gear pump belongs to () according to its working principle. ["reciprocating pumps","positive displacement pumps","centrifugal pumps","centripetal pum"]
P-274泵跳闸该如何处理?
某焦炉开工率为105%时,其煤气流量为39000m3/h,当该炉的开工率提高到115%时,应将煤气流量设定为多少?