什么是阻抗三角形？
参考答案：
用电压三角形的三个边分别除以电流，则可得到一个和电压三角形相似的三角形，这便是阻抗三角形。
—Did you tell your parents about the result?
—Oh, no, I forgot. I them now.
A．will be calling
B．will call
C．am going to tell
D．am to call
122. The homesick girl found that she missed her parents more than she had _____.
A．hoped
B．exposed
C．wanted
D．Expected
