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【单选题】
游客提出提高交通工具等级导游人员应( )。A.
婉言谢绝
B.
首先与接待社计调部门联系,若有所要求的等级可更换,告知全部费用的
C.
立即与旅游交通部门联系并安排更换事宜
D.
请游客自行更换
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皮皮学刷刷变学霸
举一反三
【单选题】In which of the following does the current in an electrical circuit equal the electromotive force divided by the resistance?
A.
Ohm Law
B.
Coulomb Law
C.
Kirchhoff Law
【简答题】英翻汉“An electric current varies directly as the electromotive force and inversely as the resistance. ”
【判断题】The term voltage is commonly used to indicate a difference in potential but electromotive force is not.
A.
正确
B.
错误
【简答题】( ): Electromotive force or potential difference, usually expressed in volts.
【单选题】Which of the following can NOT be regarded as an external electromotive force (emf)?
A.
a chemical battary
B.
a protable battary
C.
a voltage source
D.
a resistor
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