1/5单选题
难度：
1.冰融化成水后，不变的物理量是（ ）
| A | 质量 |
| B | 体积 |
| C | 密度 |
| D | 温度 |
- 提示1：
- IOi0qOmHj+S4jueJqeS9k+aJgOWQq+eJqei0qOWkmuWwkeacieWFs++8jOWGsOiejeWMluaIkOawtO+8jOaJgOWQq+eJqei0qOWkmuWwkeaXoOWFs+OAgg==
- 提示2：
- IOa6tuWMluWQjuS9k+enr+WPmOWwj++8jOaJgOS7peWvhuW6puWPmOWkp+OAgg==
- 提示3：
- IOWGsOiejeWMluimgeWQuOeDre+8jOa4qeW6puWPr+iDveWNh+mrmO+8jOS5n+WPr+iDveS4jeWPmO+8jOaDs+aDs+S7gOS5iOaXtuWAmeS4jeWPmOWRou+8nw==
正确答案：QQ==
PGRpdj7lhrDono3ljJblkI7vvIzotKjph4/kuI3lj5jvvIzkvZPnp6/lh4/lsI/vvIzmiYDku6Xlr4bluqblj5jlpKfjgII8L2Rpdj4=
2/5单选题
难度：
2.将含有石块冰块放在为装有水的烧杯中，若冰完全熔化，杯中液面高度将（ ）
| A | 下降 |
| B | 上升 |
| C | 不变 |
| D | 无法确定 |
- 提示1：
- IOWGsOeGlOWMlu+8jOeDp+adr+W6lemDqOWPl+WIsOa2suS9k+WOi+WKm+WHj+Wwj+OAgg==
- 提示2：
- IEY9PGltZyB3aWR0aD00MyBoZWlnaHQ9MjEgc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC8wMC85NC9yQkFDRkZNTWFGamhUYmZuQUFBQnFYSnFlQUE2NzQucG5nIj7vvIzmt7flkIjlkI4s5ray5L2T5a+G5bqm5LiN5Y+Y44CC
- 提示3：
- IOWOi+WKm+WHj+Wwj++8jOa2suS9k+WvhuW6puS4jeWPmO+8jOaJgOS7pWjpmY3kvY7jgII=
正确答案：QQ==
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
3/5单选题
难度：
3.把石块的冰块放装有酒精的烧杯中，冰块全部浸没，当冰融化后，液面如何变化
| A | 下降 |
| B | 上升 |
| C | 不变 |
| D | 无法确定 |
- 提示1：
- IOWboOS4uuWGsOeahOWvhuW6puWkp+S6jumFkueyvuWvhuW6pu+8jOaJgOS7peWGsOayieW6leOAgeS4jeiDveeUqOWOi+WKm+WPmOWMlu+8jOa2suS9k+WvhuW6puWPmOWMluaxguino+S6huOAgg==
- 提示2：
- IOatpOmimOavlOS5i+WJjeeahOmXrumimOabtOS4uueugOWNleOAguWPquimgeiAg+iZkeWGsOeGlOWMluWQjuS9k+enr+WPmOWMluaDheWGteWNs+WPr+OAgg==
- 提示3：
- IOWGsOeGlOWMluWQjuS9k+enr+WHj+Wwj++8jOefs+Wdl+S9k+enr+S4jeWPmO+8jOaJgOS7peaVtOS9k+a2sumdouS8muS4i+mZjeOAgg==
正确答案：QQ==
PGRpdj7lm6DkuLrlhrDnmoTlr4bluqblpKfkuo7phZLnsr7lr4bluqbvvIzmiYDku6XlhrDmsonlupXjgIHkuI3og73nlKjljovlipvlj5jljJbvvIzmtrLkvZPlr4bluqblj5jljJbmsYLop6PkuobvvIzmraTpopjmr5TkuYvliY3nmoTpl67popjmm7TkuLrnroDljZXjgILlj6ropoHogIPomZHlhrDnhpTljJblkI7kvZPnp6/lj5jljJbmg4XlhrXljbPlj6/vvIzlhrDnhpTljJblkI7kvZPnp6/lh4/lsI/vvIznn7PlnZfkvZPnp6/kuI3lj5jvvIzmiYDku6XmlbTkvZPmtrLpnaLkvJrkuIvpmY3jgII8L2Rpdj4=
4/5单选题
难度：
4.
如图所示，在一只装着水的杯子中漂浮着一含有石块的块冰，而在冰和水的上面又覆盖着一层油，当冰完全融化后，总液面高度（）. 
| A | 上升 |
| B | 下降 |
| C | 不变 |
| D | 无法确定 |
- 提示1：
- PHA+5q2k6aKY5ZKM5LiK5LiA6aKY6Kej5rOV5LiA5qC344CCPC9wPg==
- 提示2：
- PHA+5Yaw54aU5YyW5ZCO5L2T56ev5YeP5bCP77yM55+z5Z2X5rKJ5bqV77yM5rW45rKh5L2T56ev5LiN5Y+Y44CCPC9wPg==
- 提示3：
- PHA+5omA5Lul54aU5YyW5ZCO5pW05L2T5ray6Z2i5LiL6ZmN44CCPC9wPg==
正确答案：Qg==
PGRpdj7lhrDmtbjmsqHlnKjmtrLkvZPkuK3vvIzmiYDku6XlhrDnhpTljJbkvZPnp6/lh4/lsI/vvIzmgLvmtrLpnaLkvJrkuIvpmY3jgII8L2Rpdj4=
5/5单选题
难度：
5.
下列四个相同的容器中，液面高度相同，D容器中的液体（和水不相溶）比水的密度大，如图所示. 当四个容器中的冰熔化后，A、B、C、D四个容器中的液面高度分别变为h1、h2、h3、h4，则（ ）
| A | h4＞h1=h2＞h3 |
| B | h1=h2=h3=h4 |
| C | h4＞h1＞h2＞h3 |
| D | h1=h2=h4＞h3 |
- 提示1：
- PHA+5Yik5pat54aU5YyW5ZCO77yM5omA5pyJ54mp5L2T5rWu5Yqb5Y+Y5YyW5oOF5Ya144CCPC9wPg==
- 提示2：
- PHA+6YCa6L+H5rWu5Yqb5Y+Y5YyW5Yik5pat5Y6L5Yqb5Y+Y5YyW44CCPC9wPg==
- 提示3：
- PHA+6YCa6L+H5Y6L5Yqb5Y+Y5YyW5Yik5pat5ray6Z2i5Y+Y5YyW44CCPC9wPg==
正确答案：QQ==
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