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【单选题】
142. ∑I=0 只适用于( )。A.
节点
B.
复杂电路的节点
C.
闭合曲面
D.
节点和闭合曲面
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】Don’t worry. I will ________my younger sister.
A.
take off
B.
take care of
C.
take out
D.
take after
【单选题】Don’t worry, I will ________my younger sister.
A.
takes care of
B.
took care of
C.
take care of
【单选题】--- Don’t worry, I will ________my younger sister.
A.
takes care of
B.
took care of
C.
take care
D.
take care of
【单选题】—Tommy, you can never let others know what I have told you today. —Don’t worry. I will keep the ______.
A.
secret
B.
money
C.
address
D.
grade
【单选题】—Tommy, you can never let others know what I have told you today. —Don’t worry. I will keep the ______.
A.
address
B.
money
C.
secret
D.
stone
相关题目：
【单选题】Don’t worry, I will ________my younger sister.
A.
takes care of
B.
took care of
C.
take care of