问题
多项选择题
热击穿的击穿电压与()有关。
A.温度
B.散热条件
C.介质厚度
D.频率
答案
参考答案:A, B, C, D
热击穿的击穿电压与()有关。
A.温度
B.散热条件
C.介质厚度
D.频率
参考答案:A, B, C, D
选择方框内适当的词完成句子. | |
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1. Do you want to be my pen pal? Please write to me _____. 2. — Does China have _____ brothers? — No , she doesn't. 3. I don't like math. It is _____ difficult. 4. French is an _____ language. I like it. 5. Bob can speak _____ Japanese. He has a Japanese pen pal. |