【单选题】邮件地址“gltdaozhi@http://www.wendangxiazai.com”的用户名是( )。
C.
http://www.wendangxiazai.com
D.
http://www.jinsongzhigao.com
【单选题】反应在全混流反应器中进行时,下列哪个说法是错误的( )。
【单选题】these are ____ desks.
【简答题】These are not your desks. They are _____(our).
【单选题】These are ____ desks.