什么是电容的并联?
参考答案:
将每个电容器首尾分别相连,然后接人电路,它的等效电容值等于相并联的各电容值之和。
冷做产品检验应包括那些内容?
Did he write all the articles _________ or did anyone help him?[ ]
A. in person
B.,in a person
C. in the persons
D. in persons