中学生网络课堂本课配套习题挑战模式1/5
单选题
难度系数：
1.下列关于半导体的说法，正确的是（）
| A: 常温下半导体的电阻为零 |
| B: 半导体广泛应用于各种电子设备 |
| C: 半导体就是超导体 |
| D: 任何情况下半导体都是不导电的 |
一次做对，真牛！
+5奖励规则>
- 提示1：5Y2K5a+85L2T5p2Q5paZ55qE54m554K55Lul5Y+K5bqU55So77yOPGJyPuWvvOS9k+aAp+iDveS7i+S6juS6jOiAheS5i+mXtOeahOaYr+WNiuWvvOS9k++8jOWcqOeJueWumuadoeS7tuS4i+eUtemYu+WHoOS5juS4uumbtueahOaYr+i2heWvvOS9kw==
- 答案：Qg==
5Y2K5a+85L2T5p2Q5paZ55qE54m554K55Lul5Y+K5bqU55So77yOPGJyPuWvvOS9k+aAp+iDveS7i+S6juS6jOiAheS5i+mXtOeahOaYr+WNiuWvvOS9k++8jOWcqOeJueWumuadoeS7tuS4i+eUtemYu+WHoOS5juS4uumbtueahOaYr+i2heWvvOS9k++8jjxicj7ljYrlr7zkvZPkuI3mmK/otoXlr7zkvZPvvI7ljYrlr7zkvZPkuLvopoHlupTnlKjkuo7lkITnp43nlLXlrZDorr7lpIfkuK3vvI7mlYVB44CBQ+OAgUTplJnor6/vvI48YnI+5pWF6YCJQu+8jg==
本课配套习题挑战模式2/5
单选题
难度系数：
2.下列物质中，属于半导体的是（）
| A: 铜 |
| B: 玻璃 |
| C: 锗 |
| D: 塑料 |
一次做对，真牛！
+5奖励规则>
- 提示1：5a+85L2T5ZKM57ud57yY5L2T5rKh5pyJ5piO5pi+55qE55WM6ZmQ77yM5a+855S15oCn6IO95LuL5LqO5a+85L2T5ZKM57ud57yY5L2T5LmL6Ze055qE54mp5L2T5Y+r5YGa5Y2K5a+85L2T
- 答案：Qw==
5a+85L2T5ZKM57ud57yY5L2T5rKh5pyJ5piO5pi+55qE55WM6ZmQ77yM5a+855S15oCn6IO95LuL5LqO5a+85L2T5ZKM57ud57yY5L2T5LmL6Ze055qE54mp5L2T5Y+r5YGa5Y2K5a+85L2T77yM5bi46KeB55qE5Y2K5a+85L2T5pyJ77ya56GF44CB6ZSX562J77yOPGJyPumTnOaYr+W4uOingeeahOWvvOS9k++8jOeOu+eSg+WSjOWhkeaWmeaYr+W4uOingeeahOe7nee8mOS9k++8jOaVhUHjgIFC44CBROmDveS4jeespuWQiOmimOaEj++8mzxicj7mlYXpgIlD77yO
本课配套习题挑战模式3/5
单选题
难度系数：
3.关于半导体，以下说法错误的是
| A: 计算机的集成电路是用半导体材料做成的 |
| B: 楼道自动开关中的光敏电阻可能是半导体制成的 |
| C: 半导体的导电性能受温度、光照等外界因素影响很大 |
| D: 盐水的浓度对导电性能有很大的影响，降低盐水的浓度就可以使盐水成为半导体 |
一次做对，真牛！
+5奖励规则>
- 提示1：6K6h566X5py655qE6ZuG5oiQ55S16Lev5piv55So5Y2K5a+85L2T5p2Q5paZ5YGa5oiQ55qE77yM6K+05rOV5q2j56Gu
- 提示2：5qW86YGT6Ieq5Yqo5byA5YWz5Lit55qE5YWJ5pWP55S16Zi75Y+v5piv5Y2K5a+85L2T5Yi25oiQ55qE77yM6K+05rOV5q2j56Gu
- 提示3：5Y2K5a+85L2T5p2Q5paZ5piv5a+855S15oCn6IO95LuL5LqO5a+85L2T5LiO57ud57yY5L2T6Ze055qE5p2Q5paZ77yM5bi455So55qE5Y2K5a+85L2T5p2Q5paZ5pyJ56GF44CB6ZSX562J77yM55uQ5rC055qE5rWT5bqm5a+55a+855S15oCn6IO95pyJ5b6I5aSn55qE5b2x5ZON77yM6ZmN5L2O55uQ5rC055qE5rWT5bqm5Y+v5Lul5pS55Y+Y5a6D55qE5a+855S15oCn6IO977yM5L2G55uQ5rC05LiN5piv5Y2K5a+85L2T
- 答案：RA==
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
本课配套习题挑战模式4/5
单选题
难度系数：
4.当温度降低到一定程度时，某些物质的电阻会变为零，这种物质叫做超导体．电流通过超导体时不发热，因此超导体的应用十分广泛．假如有室温环境中的超导体，可用它来制作（）
| A: 家用保险丝 |
| B: 白炽灯灯丝 |
| C: 电热丝 |
| D: 输电导线 |
一次做对，真牛！
+5奖励规则>
- 提示1：6LaF5a+8546w6LGh5piv55S16Zi75Li66Zu255qE546w6LGh77yM6LaF5a+85L2T6YCC5ZCI5Yi25L2c6L6T55S15a+857q/5ZKM55S15Yqo5py657q/5ZyI562J77yO
- 答案：RA==
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
本课配套习题挑战模式5/5
单选题
难度系数：
5.关于导体、绝缘体和超导体，下列说法正确的是
| A: 导体就是指没有电阻的物体 |
| B: 绝缘体对电流的阻碍作用小 |
| C: 超导材料已广泛应用于现代生活实际 |
| D: 用超导材料来制造电子元件时，不需要考虑散热问题 |
一次做对，真牛！
+5奖励规则>
- 提示1：5qC55o2u5a+85L2T5ZKM57ud57yY5L2T55qE5qaC5b+15YiG5p6Q77yO5a655piT5a+855S155qE54mp5L2T5Y+r5a+85L2T77yM5LiN5a655piT5a+855S155qE54mp5L2T5Y+r57ud57yY5L2T5Y+K6LaF5a+85Zyo546w5a6e55Sf5rS75Lit55qE5a6e6ZmF5bqU55So77yO
- 答案：RA==
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
