问题
选择题
The Sun family had a ________ visit to Canada last month. [ ]
A. ten days
B. ten day
C. ten-days
D. ten-day
答案
答案：D
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The Sun family had a ________ visit to Canada last month. [ ]
A. ten days
B. ten day
C. ten-days
D. ten-day
答案：D
质量为2kg的金属，温度从25℃升高到105℃，吸收的热量是7.52×104J．
| 几种金属的比热容 c/[J•（kg•℃）-1] | |
| 铅 | 0.13×103 |
| 水银 | 0.14×103 |
| 铜 | 0.39×103 |
| 钢铁 | 0.46×103 |
| 铝 | 0.88×103 |
（1）这种金属的比热容；
（2）根据比热容表，它可能是一种什么金属？