A:30℃
B:35℃
C:40℃
D:45℃
25×324=____ 209×70=____
—The cake smells ___________ bad.
—It goes ___________ easily if you don't keep it in the fridge.
温度/℃
20
40
60
80
溶解度/g
1.68
3.73
7.3
13.4