(IP 
  (NP-SBJ 
    (PN 双方))
                    
  (VP 
    (ADVP 
      (AD 还))
                    
    (VP 
      (VV 可以)
                    
      (VP 
        (VP 
          (ADVP 
            (AD 直接))
                    
          (PP-MNR 
            (P 通过)
                    
            (NP 
              (NN 网络)))
                    
          (VP 
            (VV 进行)
                    
            (NP-OBJ 
              (NN 课堂)
                    
              (NN 讨论)
                    
              (PU 、)
                    
              (NN 提问)
                    
              (NN 答疑))))
                    
        (PU ，)
                    
        (VP 
          (PP-MNR 
            (P 通过)
                    
            (NP 
              (ADJP 
                (JJ 虚拟))
                    
              (NP 
                (NN 实验室))))
                    
          (VP 
            (VV 完成)
                    
            (NP-OBJ 
              (NP 
                (ADJP 
                  (JJ 远))
                    
                (NP 
                  (NN 距离)))
                    
              (NP 
                (NN 操作)
                    
                (CC 和)
                    
                (NN 演示))
                    
              (NP 
                (NN 训练)))))))))
argm: 
                    远 距离