中学生网络课堂本课配套习题挑战模式1/6
单选题
难度系数：
1.在人们的生产和生活中，经常要对物质进行分类. 下面已将现有物品分成了两类：①铅笔芯、铝质易拉罐、水银 ②橡皮擦、塑料笔套、玻璃板. 这两类物品分别属于（ ）
| A: 导体和绝缘体 |
| B: 金属和非金属 |
| C: 磁性材料和非磁性材料 |
| D: 晶体和非晶体 |
一次做对，真牛！
+5奖励规则>
- 提示1：IOesrOS4gOexu+eJqeS9k++8muKRoOmTheeslOiKr+OAgemTnei0qOaYk+aLiee9kOOAgeawtOmTtuS4re+8jOWFtuWFseWQjOeJueeCueaYr+mDveiDveWvvOeUte+8jOWxnuS6juWvvOS9k++8m+iAjOesrOS6jOexu+eJqeS9k+KRoeapoeearuaTpuOAgeWhkeaWmeeslOWll+OAgeeOu+eSg+adv+S4re+8jOWFtuWFseWQjOeJueeCueaYr+mDveS4jeaYk+WvvOeUte+8jOWxnuS6jue7nee8mOS9kw==
- 答案：QQ==
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本课配套习题挑战模式2/6
单选题
难度系数：
2.下列各组物质中全部属于导体的是（ ）
| A: 塑料、陶瓷、油 |
| B: 塑料、大地、石墨 |
| C: 塑料、人体、铜 |
| D: 人体、铜、石墨 |
一次做对，真牛！
+5奖励规则>
- 提示1：IOWhkeaWmeOAgemZtueTt+OAgeayuemDveaYr+e7nee8mOS9ky4g5aSn5Zyw44CB55+z5aKo44CB6ZOc6YO95piv5a+85L2T
- 答案：RA==
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本课配套习题挑战模式3/6
单选题
难度系数：
3.下列说法中正确的是（ ）
| A: 干燥的木头是绝缘体，潮湿的木头是导体 |
| B: 各种酸、碱、盐的水溶液都是绝缘体 |
| C: 绝缘体不容易导电，所以它们不是电工材料 |
| D: 负电荷定向移动的方向是电流方向 |
一次做对，真牛！
+5奖励规则>
- 提示1：IOW5sueHpeeahOacqOWktOS4jeaYk+WvvOeUte+8jOaYr+e7nee8mOS9k++8jOa9rua5v+eahOacqOWktOWuueaYk+WvvOeUte+8jOaYr+WvvOS9kw==
- 提示2：IOWQhOenjemFuOOAgeeiseOAgeebkOeahOawtOa6tua2sumDveWuueaYk+WvvOeUte+8jOmDveaYr+WvvOS9kw==
- 提示3：IOe7nee8mOS9k+S4jeWuueaYk+WvvOeUte+8jOWcqOeUteW3peS4iuWPr+S7peeUqOS9nOe7nee8mOadkOaWmQ==
- 提示4：IOato+eUteiNt+eahOWumuWQkeenu+WKqOaWueWQkeaYr+eUtea1geaWueWQke+8jOaVhUTplJnor68=
- 答案：QQ==
PGRpdj7lubLnh6XnmoTmnKjlpLTkuI3mmJPlr7znlLXvvIzmmK/nu53nvJjkvZPvvIzmva7mub/nmoTmnKjlpLTlrrnmmJPlr7znlLXvvIzmmK/lr7zkvZPvvJvlkITnp43phbjjgIHnorHjgIHnm5DnmoTmsLTmurbmtrLpg73lrrnmmJPlr7znlLXvvIzpg73mmK/lr7zkvZPvvJvnu53nvJjkvZPkuI3lrrnmmJPlr7znlLXvvIzlnKjnlLXlt6XkuIrlj6/ku6XnlKjkvZznu53nvJjmnZDmlpnvvJvmraPnlLXojbfnmoTlrprlkJHnp7vliqjmlrnlkJHmmK/nlLXmtYHmlrnlkJHvvIzmlYVE6ZSZ6K+vPC9kaXY+
本课配套习题挑战模式4/6
单选题
难度系数：
4.
下列说法错误的是（ ）
| A: 导体能够导电是因为导体内有大量自由电荷 |
| B: 绝缘体不容易导电是因为绝缘体内没有电荷 |
| C: 金属能够导电是因为金属内有大量自由电子 |
| D: 酸、碱、盐的水溶液导电靠正离子和负离子 |
一次做对，真牛！
+5奖励规则>
- 提示1：PHA+5a+85L2T6IO95aSf5a+855S15piv5Zug5Li65a+85L2T5YaF5pyJ5aSn6YeP55qE6Ieq55Sx55S16I23PC9wPg==
- 提示2：PHA+57ud57yY5L2T5LiN5a655piT5a+855S15piv5Zug5Li657ud57yY5L2T5YaF5Yeg5LmO5rKh5pyJ6Ieq55Sx56e75Yqo55qE55S16I23PC9wPg==
- 提示3：PHA+6YeR5bGe6IO95aSf5a+855S15piv5Zug5Li66YeR5bGe5a+85L2T5Lit5a2Y5Zyo5aSn6YeP55qE6Ieq55Sx55S16I2377yM6L+Z5Lqb6Ieq55Sx55S16I235bCx5piv6Ieq55Sx55S15a2QPC9wPg==
- 提示4：PHA+6YW444CB56Kx44CB55uQ55qE5rC05rq25ray5Lit5a2Y5Zyo5aSn6YeP55qE5q2j6LSf56a75a2Q77yb5a6D5a+855S15bCx5piv6Z2g5q2j56a75a2Q5ZKM6LSf56a75a2QPC9wPg==
- 答案：Qg==
PGRpdj7lr7zkvZPog73lpJ/lr7znlLXmmK/lm6DkuLrlr7zkvZPlhoXmnInlpKfph4/nmoToh6rnlLHnlLXojbfvvJvnu53nvJjkvZPkuI3lrrnmmJPlr7znlLXmmK/lm6DkuLrnu53nvJjkvZPlh6DkuY7msqHmnInoh6rnlLHnlLXojbfvvJvph5HlsZ7og73lpJ/lr7znlLXmmK/lm6DkuLrph5HlsZ7lr7zkvZPkuK3lrZjlnKjlpKfph4/nmoToh6rnlLHnlLXojbfvvIzov5nkupvoh6rnlLHnlLXojbflsLHmmK/oh6rnlLHnlLXlrZDvvJvphbjjgIHnorHjgIHnm5DnmoTmsLTmurbmtrLkuK3lrZjlnKjlpKfph4/nmoTmraPotJ/nprvlrZDvvJvlroPlr7znlLXlsLHmmK/pnaDmraPnprvlrZDlkozotJ/nprvlrZDvvJvpgInpoblC6ZSZ6K+vPC9kaXY+
本课配套习题挑战模式5/6
单选题
难度系数：
5.绝缘体与导体的最大区别在于（ ）
| A: 绝缘体内没有电荷，而导体内有电荷 |
| B: 绝缘体内只有少量电荷，而导体内有大量电荷 |
| C: 绝缘体内只有少量自由电荷，而导体内有大量自由电荷 |
| D: 以上说法都是错误的 |
一次做对，真牛！
+5奖励规则>
- 提示1：IOWvvOS9k+WGhemDqOacieWkp+mHj+eahOiHqueUseeUteiNt++8jOWvvOS9k+S5i+aJgOS7peWuueaYk+WvvOeUte+8jOmdoOeahOWwseaYr+i/meS6m+iHqueUseeUteiNt++8m+iAjOe7nee8mOS9k+WGhemDqOWHoOS5juayoeacieiHqueUseeUteiNt++8jOiHqueUseeUteiNt+W+iOWwke+8jOaJgOS7peS5n+WwseS4jeWuueaYk+WvvOeUteS6hg==
- 答案：Qw==
PGRpdj7lr7zkvZPlhoXpg6jmnInlpKfph4/nmoToh6rnlLHnlLXojbfvvIzlr7zkvZPkuYvmiYDku6XlrrnmmJPlr7znlLXvvIzpnaDnmoTlsLHmmK/ov5nkupvoh6rnlLHnlLXojbfvvJvogIznu53nvJjkvZPlhoXpg6jlh6DkuY7msqHmnInoh6rnlLHnlLXojbfvvIzoh6rnlLHnlLXojbflvojlsJHvvIzmiYDku6XkuZ/lsLHkuI3lrrnmmJPlr7znlLXkuobvvIzpgInpoblD5q2j56GuPC9kaXY+
本课配套习题挑战模式6/6
单选题
难度系数：
6.
关于绝缘体的说法，正确的是（ ）
| A: 绝缘体容易导电，也能够带电 |
| B: 绝缘体容易导电，但不能带电 |
| C: 绝缘体不能导电，也不能带电 |
| D: 绝缘体不容易导电，但能够带电 |
一次做对，真牛！
+5奖励规则>
- 提示1：PHA+QeOAgeWboOS4uue7nee8mOS9k+WGheWHoOS5juayoeacieiDveWkn+iHqueUseenu+WKqOeahOeUteiNt++8jOaJgOS7pee7nee8mOS9k+S4jeWuueaYk+WvvOeUte+8m+e7nee8mOS9k+iDveWkn+W4pueUte+8jOWmguS4nee7uOaRqeaTpui/h+eahOeOu+eSg+ajkuW4puato+eUtTwvcD4=
- 提示2：PHA+QuOAgeWboOS4uue7nee8mOS9k+WGheWHoOS5juayoeacieiDveWkn+iHqueUseenu+WKqOeahOeUteiNt++8jOaJgOS7pee7nee8mOS9k+S4jeWuueaYk+WvvOeUte+8m+S9hue7nee8mOS9k+iDveWkn+W4pueUtTwvcD4=
- 提示3：PHA+Q+OAgee7nee8mOS9k+S4jeWuueaYk+WvvOeUte+8m+S9hue7nee8mOS9k+iDveWkn+W4pueUtTwvcD4=
- 提示4：PHA+57ud57yY5L2T5LiN5a655piT5a+855S177yM5piv5Zug5Li657ud57yY5L2T5YaF5rKh5pyJ6IO95aSf6Ieq55Sx56e75Yqo55qE55S16I2377yb5Zyo5pGp5pOm6LW355S15Lit77yM57ud57yY5L2T55Sx5LqO5b6X5aSx55S15a2Q6ICM5bim5LqG55S1PC9wPg==
- 答案：RA==
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
