
四年级科学 第二单元 5-8
Quiz
•
Science
•
4th Grade
•
Medium
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34 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
接线盒中两个接线柱之间要实现通路必须要有导线连接。
正确
错误
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
检测接线盒内部的连接方式实验中,根据实验现象只能对应一种电路连接方法。
正确
错误
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
用电路检测器检测两个接线柱之间是通路,则这两个接线柱之间一定有导线直接连接。
正确
错误
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
用电路检测器检测两个接线柱之间是断路,则这两个接线柱之间一定没有导线直接连接。
正确
错误
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
用电路检测器检测接线盒内电路的连接情况(如右图),以下三种检测顺序更为合理的是。
1-22-3 1-41-3 2-43-4
3-42-3 1-41-2 2-41-3
1-21-3 1-42-3 2-43-4
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
电路中有一个接线盒,有四个接线柱。已知电路通断情况如右图所示,则接线盒内部的连接方式不可能是。
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
金属都是导体。
正确
错误
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