咁多位親愛的4D同學們

聽日chem要交worksheets 同埋有個quiz

quiz係quiz 21課

worksheet係要做好electrolysis

龜仙人已經post左answer上網

係到提提大家

都好有多野做下

要快就早D攞落黎啦

因為都好多下

by blog 主 leo