低温永久气体充装，充装前，应检查低温液体汽化器气体出口（）、压力控制装置是否处于正常状态。 ["温度","压力","速度"]
What is the main difference between the information displayed on the dspload and the dsptrkutl screens？（） ["The dspload screen is for all trunks； the dsptrkutl screen is for one trunk","The dspload screen shows the expected traffic； the dsptrkutl screen shows actual traffice","The information on the dspload screen never changes； the dsptrkutl screen is dynamic","The dspload screen shows historical information； the dsptrkutl screen shows current informatio"]
管理信息系统是什么？
简述比较文学与民族文学的关系。
The network technician is planning to use the 255.255.255.224 subent mask on the network.which three valid IP addresses can the technician use for the hosts?（） ["172.22.243.127","172.22.243.191","172.22.243.190","10.16.33.98","10.17.64.34","192.168.1.160"]
等高距
