判断题

电弧电流的本质是离子导电。

答案：正确

你可能感兴趣的试题

单项选择题

As for how to tell positive stories, which statement is wrong?
A.
Feel free to share positive stories with your child
B.
Consider your child's age and maturity level
C.
Ensure that they will correctly understand
D.
Tell stories that kids can’t understand

当抓取小鼠时，应该抓取B的位置来预防小鼠回身咬到自己。

答案：错误