The local host on a small network is named Earth. There is also a remote host on the network named Saturn.  The system administrator of the network is in the /u/tmp directory of Earth， and starts an ftp to Saturn as root.  Which of the following sequence of commands issued from the local host， Earth， will：（）。  1.Check to see if there is an a.out file on remote host Saturn.   2.Change to the /u/new directory on Earth.  3.Transfer a.out from Earth to Saturn. ["ls a.out cd \/u\/new put a.out","ls a.out cd \/u\/new get a.out","ls a.out lcd \/u\/new put a.out","ls a.out lcd \/u\/new get a.out"] 资产评估的（），是指资产评估的行为服务于资产业务的需要，而不是服务于资产业务当事人的任何一方的需要。 ["公正性","市场性","咨询性","专业性"] When monitoring a system using vmstat with an interval， the metrics under page po represent which of the following phrases？（）  [" The number pages over the limit"," The pages to paging space per second"," The number of page operations per second"," The number of processes waiting for page out"] 液化石油气中，可能溶有微量的水，为了防止结冰，可以对液化石油气进行干燥，也可以（）。 ["提高贮存温度；","提高罐容积；","加入0.1%（容积）的甲醇；","降低贮存压力"] An administrator has set up serverA and serverB to use the /etc/hosts.equiv file so that applications on serverA can remotely run commands on serverB. Which command will verify if a new user from serverA is trusted on serverB?（） ["As the root user from serverA run the command rhost serverB","As the root user from serverA run the command rlogin serverB","As the desired user from serverB run the command rhost serverA","As the desired user from serverA run the command rlogin serverB"] 结合实际谈谈如何提高和培养大学生的人际沟通能力？