A:30 cm
B:20 cm
C:10 cm
D:
时间/min
0
1
2
3
4
5
6
7
8
9
温度/℃
90
92
94
96
97
98
99
某些食物的近似pH为:牛奶6.3~6.6,葡萄3.5~4.5,玉米粥6.8~8.0,苹果2.9~3.3,其中酸性最强的是( )
Before the sales start, I make a list of ______ my kids will need for the coming season.