本课配套习题挑战模式1/5
单选题
难度系数:
1.在雨、露、雾和霜这些自然现象中,由空气中水蒸气凝华而形成的是( )
A: 雨 |
B: 露 |
C: 雾 |
D: 霜 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOWHneWNjuaYr+eJqei0qOS7juawlOaAgeS4jee7j+i/h+a2suaAgeiAjOebtOaOpeWPmOaIkOWbuuaAgeeahOeOsOixoQ==
- 提示2:IOmbqOOAgemcsuOAgembvuaYr+a2suWMlueOsOixoe+8jOmcnOaYr+WHneWNjueOsOixoQ==
- 答案:RA==
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本课配套习题挑战模式2/5
单选题
难度系数:
2.下列自然现象中,属于凝华的是( )
A: 春天,河里的冰雪消融 |
B: 夏天早晨,花草上附着露水 |
C: 深秋的早晨,大雾弥漫 |
D: 冬天的早晨,霜打枝头 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOWHneWNjuaYr+eJqei0qOS7juawlOaAgeS4jee7j+i/h+a2suaAgeiAjOebtOaOpeWPmOaIkOWbuuaAgeeahOeOsOixoQ==
- 提示2:IOWGsOmbquiejeWMluaYr+eGlOWMlueOsOixoQ==
- 提示3:IOmbqOOAgemcsuOAgembvuaYr+a2suWMlueOsOixoe+8jOmcnOaYr+WHneWNjueOsOixoQ==
- 答案:RA==
PGRpdj7lhrDpm6rono3ljJbmmK/nhpTljJbnjrDosaHvvJvpm6jjgIHpnLLjgIHpm77mmK/mtrLljJbnjrDosaHvvJvpnJzmmK/lh53ljY7njrDosaHvvIzliJnpgInmi6lE6YCJ6aG5PC9kaXY+
本课配套习题挑战模式3/5
单选题
难度系数:
3.用久的灯泡其玻璃外壳会发黑,这是下面哪些物态变化现象造成的( )A化②凝固 ③汽化 ④液化 ⑤升华 ⑥凝华
A: 钨丝先①③再④② |
B: 钨丝先⑤后⑥ |
C: 钨丝先⑤再④② |
D: 钨丝先①③再⑥ |
一次做对,真牛!
+5奖励规则>
- 提示1:IOWNh+WNjuaYr+eJqei0qOS7juWbuuaAgeebtOaOpeWPmOaIkOawlOaAgeeahOeOsOixoe+8m+WHneWNjuaYr+eJqei0qOS7juawlOaAgeebtOaOpeWPmOaIkOWbuuaAgeeahOeOsOixoQ==
- 提示2:IOeBr+azoeeUqOS5heS6hu+8jOeUseS6juWNh+WNjueBr+S4neWPmOe7hu+8jOeEtuWQjuawlOS9k+WHneWNjuWvvOiHtOWGheWjgeWPmOm7kQ==
- 答案:Qg==
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本课配套习题挑战模式4/5
单选题
难度系数:
4.物态变化包括:①汽化②液化③熔化④凝固⑤升华⑥凝华,其中下列全部是放热的一组是( )
A: ①③⑤ |
B: ②③⑥ |
C: ④⑤⑥ |
D: ②④⑥ |
一次做对,真牛!
+5奖励规则>
- 提示1:IOa2suWMluOAgeWHneWbuuOAgeWHneWNjui/h+eoi+aUvueDrQ==
- 提示2:IOaxveWMluOAgeeGlOWMluOAgeWNh+WNjui/h+eoi+WQuOeDrQ==
- 答案:RA==
PGRpdj7mtrLljJbjgIHlh53lm7rjgIHlh53ljY7ov4fnqIvmlL7ng63vvIzmiYDku6XikaHikaPikaXov5nkuIDnu4Tlhajpg6jmmK/mlL7ng63nmoTvvIzliJnpgInmi6lE6YCJ6aG5PC9kaXY+
本课配套习题挑战模式5/5
单选题
难度系数:
5.下列关于“冰棒现象”的分析:①剥去包装纸,冰棒“冒气”,属于汽化现象;②剥去包装纸,过一会儿,冰棒“流汗”,属于升华现象;③冰棒放入茶杯,杯子外壁会“出汗”,属于液化现象;④刚从冰箱拿出的冰棒,包装纸上沾有“白粉”,属于凝华现象。以上说法中正确的是( )
A: ②④ |
B: ③④ |
C: ①② |
D: ①④ |
一次做对,真牛!
+5奖励规则>
- 提示1:IOWJpeWOu+WMheijhee6uO+8jOWGsOajkuKAnOWGkuawlOKAne+8jOaYr+eUseS6juepuuawlOmBh+WGt+a2suWMlg==
- 提示2:IOWJpeWOu+WMheijhee6uO+8jOi/h+S4gOS8muWEv++8jOWGsOajkuKAnOa1geaxl+KAne+8jOWxnuS6jueGlOWMlueOsOixoQ==
- 提示3:IOWGsOajkuaUvuWFpeiMtuadr++8jOepuuawlOS4reawlOS9k+mBh+WIsOWGt+eahOawtOadr+WkluWjgea2suWMlu+8jOadr+WtkOWkluWjgeS8muKAnOWHuuaxl+KAnQ==
- 提示4:IOWImuS7juWGsOeuseaLv+WHuueahOWGsOajku+8jOepuuawlOS4reeahOawlOS9k+mBh+WGt+WHnee7k+aIkOWbuuS9k++8jOWMheijhee6uOS4iuWHuueOsOKAnOeZveeyieKAne+8jOaYr+WHneWNjueOsOixoQ==
- 答案:Qg==
PGRpdj7lhrDmo5LmlL7lhaXojLbmna/vvIzmna/lrZDlpJblo4HkvJrigJzlh7rmsZfigJ3vvIzov5nmmK/mtrLljJbnjrDosaHvvIzliJnikaLmraPnoa7vvJvliJrku47lhrDnrrHmi7/lh7rnmoTlhrDmo5LvvIznqbrmsJTkuK3nmoTmsJTkvZPpgYflhrflh53nu5PmiJDlm7rkvZPvvIzljIXoo4XnurjkuIrlh7rnjrDigJznmb3nsonigJ3vvIzmmK/lh53ljY7njrDosaHvvIzliJnikaPmraPnoa7jgILmiYDku6XmraPnoa7pgInpobnkuLpCPC9kaXY+