1) Which sugar is fast? a) Big sugar b) Small sugar  2) Which sugar is slow? a) Small sugar b) Big sugar  3) Sugar in water a) Jumps b) B. Dissolves 4) Small sugar dissolves a) Fast  b) B. Slow 5) Big sugar dissolves a) Fast b) Slow

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?