问题
多项选择题
暂态地电压检测时，当检测到异常时，需对该设备相邻的同型设备的相同位置进行检测并分别建文件进行（）的记录。
A.信号幅值
B.放电波形
C.放电频次
D.放电类型
答案
参考答案：A, B
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暂态地电压检测时，当检测到异常时，需对该设备相邻的同型设备的相同位置进行检测并分别建文件进行（）的记录。
A.信号幅值
B.放电波形
C.放电频次
D.放电类型
参考答案：A, B
  One night I went to Himeji, a city not far from Kobe. As I walked with my family along the river I saw a __20__. It was a young man who looked just like me. He was wearing a cap and smiling. Around his neck was a leather strap （皮带）and in his hands was a saxophone. He was __21___ the saxophone to his __22__ and just about to play. My family walked on up the river towards the castle __23__ I stayed there by the statue, __24__ of playing a saxophone on TV. Two weeks later it was my birthday. Imagine my __25___ when I opened my present from my parents and found that it was a __26__! I put it to my lips to play, but it wouldn’t make a sound. Then Dad told me to read the __27___ book to find out what to do. After about 15 minutes the saxophone was ready to play. I __28__hard but I couldn’t get the saxophone to play. I was almost __29___ when suddenly the saxophone made the most beautiful sound – loud and clear like I __30__ the music of the man by the river in Kobe.
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