如何在 US-Intl 布局上键入法文引号？[复制]

$ setxkbmap -query | grep layout
layout:     us

我相信我在安装 Linux Mint 18.3 期间指定了 US-Intl 键盘布局（附属问题，如何检查？）。我能够获得口音，例如，right-alt++,打印cç

但不是法语引号。我尝试了right-alt+ [、right-alt+z和right-alt+ \，它们是在几篇文章/维基百科中找到的解决方案，但它们不产生«.

更新：

$ cat -n /usr/share/X11/xkb/symbols/us | head -n 120 | tail -n 14
   107      key <AC04> { [     f,          F,             f,                F ] };
   108      key <AC05> { [     g,          G,             g,                G ] };
   109      key <AC06> { [     h,          H,             h,                H ] };
   110      key <AC07> { [     j,          J,             j,                J ] };
   111      key <AC08> { [     k,          K,            oe,               OE ] };
   112  
   113      key <AC09> { [     l,          L,        oslash,         Ooblique ] };
   114      key <AC10> { [ semicolon,      colon,     paragraph,           degree ] };
   115      key <AC11> { [dead_acute, dead_diaeresis, apostrophe,        quotedbl ] };
   116  
   117      key <AB01> { [     z,          Z,            ae,               AE ] };
   118      key <AB02> { [     x,          X,             x,                X ] };
   119      key <AB03> { [     c,          C,     copyright,             cent ] };
   120      key <AB04> { [     v,          V,             v,                V ] };

$ cat -n /usr/share/X11/xkb/symbols/us | grep quotemark
    86      key <AE09> { [     9,  parenleft, leftsinglequotemark, dead_breve ] };
    87      key <AE10> { [     0, parenright, rightsinglequotemark, dead_abovering ] };
   101      key <AD11> { [ bracketleft,  braceleft,  guillemotleft, leftdoublequotemark ] };
   102      key <AD12> { [bracketright, braceright, guillemotright, rightdoublequotemark ] };
   170    key <AE09> { [      9, parenleft, leftsinglequotemark,  dead_breve ] };
   171    key <AE10> { [      0, parenright, rightsinglequotemark, dead_abovering ] };
   270      key <AE09> { [     9,  parenleft, leftsinglequotemark, dead_breve ] };
   271      key <AE10> { [     0, parenright, rightsinglequotemark, dead_abovering ] };
   272      key <AE11> { [ bracketleft,  braceleft,  guillemotleft, leftdoublequotemark ] };
   273      key <AE12> { [bracketright, braceright, guillemotright, rightdoublequotemark ] };
   677      key <AE10> { [     0, parenright,     masculine,singlelowquotemark] };
   682      key <AD02> { [     w,          W,         U2211,doublelowquotemark] };
   691      key <AD11> { [ bracketleft,  braceleft, leftdoublequotemark, rightdoublequotemark ] };
   692      key <AD12> { [bracketright, braceright, leftsinglequotemark, rightsinglequotemark ] };
   741      key <AE09> { [            9,    parenleft,  leftsinglequotemark,  leftdoublequotemark ] };
   742      key <AE10> { [            0,   parenright, rightsinglequotemark,  rightdoublequotemark ] };
   871              leftsinglequotemark,    dead_breve  ] };
   873              rightsinglequotemark,   dead_abovering  ] };
   917              leftsinglequotemark,    dead_breve  ] };
   919              rightsinglequotemark,   dead_abovering  ] };
   950              leftsinglequotemark,    dead_breve  ] };
   952              rightsinglequotemark,   dead_abovering  ] };
  1459   key <AE09> { [  9, parenleft, leftsinglequotemark, U0306 ] };
  1461   key <AE10> { [  0, parenright, rightsinglequotemark, U030A ] };

不确定什么是“标准 kb”。dpkg-重新配置键盘配置