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【单选题】
基尔霍夫第一定律是指A.
某一节点电流的代数和为零
B.
某一网络电流的代数和为零
C.
某一节点电压的代数和为零
D.
某一网络电压的代数和为零
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举一反三
【单选题】Eric and Tom ________ have skill training in the school next month.
A.
are going to
B.
be going to
C.
is going
【简答题】鱼类的脑神经有哪些？其主要功能是什么？
【简答题】Tom, Eric, Tess and Ann are talking about in what way they would like their schools improved. Read the following descriptions (A, B, C and D) and match them with the four opinions. 小题1:Tom: I’d like s...
【单选题】— _______Tom in the library? — Yes. His friends Eric and Dale _______ in the library, too.
A.
Is; are
B.
Is; is
C.
Are; is
D.
Are; are
【单选题】Eric and Tom ________ have skill training in the school next month.
A.
are going to
B.
be going to
C.
is going
D.
are going
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