表达式11: "y" equals "h" left parenthesis, "f" left parenthesis, "x" , right parenthesis , right parenthesisy=hfx
11
表达式12: "y" equals "g" left parenthesis, "h" left parenthesis, "f" left parenthesis, "x" , right parenthesis , right parenthesis , right parenthesisy=ghfx
12
表达式13: "y" equals "f" left parenthesis, "g" left parenthesis, "x" , right parenthesis , right parenthesisy=fgx
13
表达式14: "y" equals "h" left parenthesis, "f" left parenthesis, "g" left parenthesis, "x" , right parenthesis , right parenthesis , right parenthesisy=hfgx
14
表达式15: "y" equals "f" left parenthesis, "g" left parenthesis, "x" , right parenthesis , right parenthesisy=fgx
15
表达式16: "y" equals "f" left parenthesis, "g" left parenthesis, "h" left parenthesis, "x" , right parenthesis , right parenthesis , right parenthesisy=fghx
16
表达式17: "y" equals "h" left parenthesis, "g" left parenthesis, "x" , right parenthesis , right parenthesisy=hgx
17
表达式18: "y" equals "f" left parenthesis, "h" left parenthesis, "g" left parenthesis, "x" , right parenthesis , right parenthesis , right parenthesisy=fhgx
18
表达式19: "y" equals "f" left parenthesis, "g" left parenthesis, "x" , right parenthesis , right parenthesisy=fgx
19
表达式20: "y" equals "g" left parenthesis, "f" left parenthesis, "h" left parenthesis, "x" , right parenthesis , right parenthesis , right parenthesisy=gfhx
