问题
选择题
I’ve _______ to swim last week. But unfortunately I had a bad cold and therefore couldn’t go.
A.refused
B.saved
C.intended
D.managed
答案
答案:C
I’ve _______ to swim last week. But unfortunately I had a bad cold and therefore couldn’t go.
A.refused
B.saved
C.intended
D.managed
答案:C
小明从表中提供的信息中,得出以下几个结论.其中错误的是( )
几种物质的比热容×103J(kg°C) | |||
水 | 4.2 | 冰 | 2.1 |
酒精 | 2.4 | 干泥土 | 0.84 |
水银 | 0.14 | 铜 | 0.39 |
A.汽车发动机用水来冷却效果好
B.液体的比热容都比固体的比热容大
C.同种物质在不同状态下的比热容值不同
D.质量相等的铜和冰,升高相同的温度,冰吸收的热量多