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【单选题】
在 25°C时,针对IGBT的静态特性,其开启电压值一般是( ) 。A.
0.3-0.7 V
B.
1V
C.
2-6 V
D.
1 -2 V
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举一反三
【单选题】听力原文：M: I came at 12 o'clock when I was going home for lunch, but you weren't here. W: No, I was training for tomorrow's race. It's 26 miles, you know. Q: What was the woman doing when the man came to...
A.
Preparing for the race of Marathons.
B.
Preparing for the cycling race the next day.
C.
Training for a hiking race.
D.
Doing an experiment.
【单选题】听力原文：W：If I'm not mistaken, your birthday is coming up. Has your brother sent you anything? M：Not yet. We're preparing a party this week. He has been quite busy these days. He never forgets though. Q：...
A.
The woman is wrong about when his birthday is.
B.
He expects to hear from his brother.
C.
He bought a present for the woman's birthday.
D.
His brother is coming to join his party.
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