能让电流通过的路线叫_____。
电
Quiz
•
Science
•
5th Grade
•
Medium
TRACY TAY
Used 63+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
路线
电线
电路
马路
2.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
完整的电路由什么组成？
（选出四个正确的答案，然后按submit）
灯泡
电线
开关
干电池
人造卫星
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
按下_____时，电路会被接通，使灯泡发亮。
灯泡
电线
开关
干电池
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪一个是电线的符号？
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
电线的外层由_____包裹着。
金属
塑料
玻璃
橡胶
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
为什么电线的外层要用橡胶包裹着？
为了美观
为了环保
防止生锈
避免触电
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪一个是干电池的符号？
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