不定项选择
电阻的倒数为电倒。
未知题型电阻的倒数为电倒。
电阻的功率恒为正,电阻为耗能元件。
未知题型电阻的功率恒为正,电阻为耗能元件。
It is a combination of Chinese oil painting artist’s mi...
单项选择题It is a combination of Chinese oil painting artist’s mind in several generations, and their sweat from tireless quest to create and hard work. A. 问卷 B. 要求 C. 追求 D. 请求