皮皮学，免费搜题
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【单选题】
电路中形成持续电流的充分条件是（）。A.
有大量的自由电荷
B.
存在电源
C.
有电源，且电路是闭合的
D.
有大量的正电荷和负电荷
拍照语音搜题，微信中搜索"皮皮学"使用
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知识点：
皮皮学刷刷变学霸
举一反三
【简答题】Mr. Wilson said that he did not want to take on any further ______ (responsible).
【单选题】Mr. Wilson said that he did not want to __ any further responsibilities
A.
tike on
B.
get on
C.
put up
D.
lockup
【单选题】Mr. Wilson said that he did not want to ____ any further responsibilities. (2005.12)
A.
take on
B.
get on
C.
put up
D.
look up
【简答题】Mr.
Wilson said that he did not want to ______very further responsibilities.A. take on B. put on C. get on D. look up
【简答题】Mr. Wilson said that he did not want to ________ any further responsibilities. A) take on B) get on C) put up D) look up
【单选题】Mr. Wilson said that he did not want to ______ any further responsibilities.
A.
take on
B.
bring on
C.
get on
D.
carry out
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