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【判断题】
一段电路的电压Uab=-10V，该电压实际上是a点电位高于b点电位。A.
正确
B.
错误
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【单选题】He has learned________, no matter what happens and how bad________seems today, life goes on and it will be better tomorrow. [ ]
A.
that; it
B.
it; that
C.
it; it
D.
that; that
【单选题】听力原文：W: Your son seems to have made much progress in playing the piano. Does he attend any piano classes? M: Yes, he takes lessons twice a week, but from next week on, he will go to the class on Satur...
A.
Once a week.
B.
Twice a week.
C.
Three times a week.
D.
Four times a week.
【单选题】听力原文：M: Martin seems excited about being on the soccer team! W: Yeah, I wish he felt the same about botany and math. Q: What does the woman imply about Martin? (18)
A.
He fell during the soccer game.
B.
He did not study hard.
C.
He likes botany more than math.
D.
Martin wishes he had more time for his studies.
【简答题】电控汽油喷射系统有哪几个子系统?各子系统都有什么作用?( 12 分)
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