1. Press the "Alt" key directly and press "0 174" and "?" Will appear. .
2. On the WORD page, select an input method, and then press "Alt+Ctrl+R" and "?" Will appear. And then "?" Just copy it to other files you need.
3. The symbol set of office software WORD and EXCEL contains the symbol "?" , use "insert-symbol-special symbol" to find? Do it.