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【单选题】
I was speaking to Ann on the phone when suddenly we were _____. [ ]A.
hung up
B.
hung back
C.
cut down
D.
cut off
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举一反三
【单选题】听力原文：M: Hey, Sue. I was wondering if you could fill me in on Monday's class. I had to go to the dentist for an emergency and I missed Prof. Smith's lecture (19) . What was it on? W: It was pretty inte...
A.
He wasn't present at the lecture.
B.
He didn't appreciate the lecture.
C.
He didn't listen to the lecture attentively.
D.
He disliked some part of the lecture.
【简答题】门极可关断晶闸管、大功率晶体管、功率场效应晶体管和绝缘栅双极晶体管按顺序其英文缩写分别是( )( )( )和( ) 。(按照顺序用“、”分开)
【单选题】听力原文：M: Hey, Sue. I was wondering if you could fill me in on Monday's class. I had to go the dentist's for an emergency and I missed Prof. Smith's lecture(19). What was it on? W: It was pretty interes...
A.
He disliked the topic of the lecture.
B.
He didn't want to go to the lecture.
C.
He thought the professor was not famous.
D.
He wasn't present at the lecture.
【简答题】每台机器重520千克，5台机器能一次运走吗？
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