【单选题】端电压恒为u,与流过它的电流i无关的二端元件称为()。
【单选题】端电压恒为 ,与流过它的电流i无关的二端元件称为( )。
【简答题】高血压:成人在休息安静状态下,动脉的 ≥ 140mmHg 、 ≥ 90mmHg 为高血压。
【多选题】Which ones of the following expessions coud you use before paraphrasing others' meaning?
A.
So, what you are saying is that.
B.
If i'm hearing you correctly, you mean.
C.
To put it another way, you mean.
【多选题】Which ones of the following expressions could you use before paraphrasing others' meanings?
A.
So, what you are saying is that...
B.
If I'm hearing you correctly, you mean...
C.
To put it another way, you mean...
【简答题】端电压恒为 ,与流过它的电流 i 无关的二端元件称为
【判断题】史学界大部分学者对乾隆皇帝的评价不高。()
【简答题】端电压恒为 U ,与流过它的电流 i 无关的二端元件称为 。 输出电流恒为I ,与其端电压 u 无关的二端元件称为 。