[计] instant acknowledge mode

lì jí kěn dìng yìng dá fāng shì ㄌㄧˋ ㄐㄧˊ ㄎㄣˇ ㄉㄧㄥˋ ㄧㄥˋ ㄉㄚˊ ㄈㄤ ㄕˋ