A:{4,7,9}
B:{5,7,9}
C:{3,5,8}
D:{7,8,9 }
She decided to visit Shanghai Expo for her summer vacation.
I will try my best to stop my son from _____ the same mistake.
据某市日报报道,某日该市最低气温是24℃,最高气温是33℃,则当天该市气温t(℃)的变化范围是____