问题
选择题
Please don't bother me again. I'll inform you of the details at an _____ time if you must know.[ ]
A. appropriate
B. convenient
C. acceptable
D. accessible
答案
答案：A
搜题请搜索小程序“爱下问搜题”
Please don't bother me again. I'll inform you of the details at an _____ time if you must know.[ ]
A. appropriate
B. convenient
C. acceptable
D. accessible
答案：A
如图所示，是小明同学做“观察水沸腾”的实验装置．
（1）本实验的目的是：观察______；探究水沸腾时______的变化规律．
（2）当水温接近90℃时，每隔1min记录一次温度，根据表格里记录的数据，请你在下面的小方格纸上画出水的沸腾图象．
| 时间/min | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| 温度/℃ | 90 | 92 | 94 | 95 | 96 | 97 | 97 | 97 | 97 |
（3）实验装置中A的作用是防止热量______；B的作用是______．
（4）从水的沸腾图象可以看出，此时水的沸点是______℃，水在沸腾的过程中温度______．