多项选择题

标准I导联反映的是（　　）和（　　）的电位差 A. 左下肢 B. 右下肢 C. 左上肢 D. 右上肢

你可能感兴趣的试题

世界最长的城墙是什么？

答案：万里长城

多项选择题

For an ideal op amp, which of the following statements are not true?
A、The differential voltage across the input terminals is zero
B、The current into the input terminals is zero.
C、The current from the output terminal is zero
D、The input resistance is zero
E、The output resistance is zero