——The relation between the two countries gets _________. A war seems to break out soon .——I hope they will make peace with each other .
A:worse and worse
B:better and better
C:more and more peaceful
在“观察水的沸腾”的实验中,小明的操作如图甲所示,他观察到水沸腾前和沸腾时水中气泡的上升情况不同,如图甲中a、b所示,则:
表一
时间/min
0
1
2
3
4
5
6
7
8
9
温度/℃
90
92
94
96
98