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【单选题】
硅晶体二极管与锗晶体二极管的导通压降分别为（）
A.
0.7V；0.3V
B.
0.2V；0.3V
C.
0.3V；0.7V
D.
0.7V；0.6V
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参考答案：
参考解析：
刷刷题刷刷变学霸
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【单选题】Human beings have used tools for a very long time. In some parts of the world you can still find tools that people used more than two million years ago. They made these tools by hitting one stone agai...
A.
disastrous.
B.
unpredictable.
C.
exciting.
D.
colourful.
【单选题】Human beings have used tools for a very long time. In some parts of the world you can still find tools that people used more than two million years ago. They made these tools by hitting one stone agai...
A.
disastrous.
B.
unpredictable.
C.
exciting.
D.
colourful.