问题
选择题
—I called you last night, but you didn’t answer it.
—I’m terribly sorry. I ______ a meeting at that time.[ ]
A. had
B. was having
C. am having
答案
答案：B
搜题请搜索小程序“爱下问搜题”
—I called you last night, but you didn’t answer it.
—I’m terribly sorry. I ______ a meeting at that time.[ ]
A. had
B. was having
C. am having
答案：B
探究影响物质吸热多少的因素的实验时，得到如下的数据表：
| 物质 | 实验 次数 | 质量/kg | 升高的 温度/℃ | 吸收的 热量/J |
| 水 | 1 | 0.05 | 10 | 2100 |
| 2 | 0.10 | 10 | 4200 | |
| 3 | ______ | ______ | ______ | |
| 煤油 | 4 | 0.05 | 10 | 1050 |
| 5 | 0.10 | 10 | 2100 |
（2）分析第1、4或2、5次实验数据，可得出的结论是：______．
（3）为了研究物质吸热多少与升高温度的关系，请设计一组数据，填入表中空格内．
（4）综上所述，物质吸热多少与______、______、______有关．