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【单选题】
如图所示电路,当负载电阻 R L 变得越来越大时,则其上电流 i 将变得越来越( )A.
大
B.
小
C.
不变
D.
不确定
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举一反三
【单选题】A well-written composition ________ good choice of words and clear organization. [ ]
A.
calls on
B.
calls for
C.
call up
D.
calls off
【简答题】A．calls for B．calls out C．calls upon D．calls up
【简答题】消费者剩余是指消费者( )。
【单选题】-Can I do the job? -I'm afraid not , because it__________ skills and patience. [ ]
A.
calls on
B.
calls out
C.
calls up
D.
calls for
【单选题】Our government ______ all people to save energy and fight against pollution.
A.
calls on
B.
calls up
C.
calls out
D.
calls for
【单选题】Which of the following human resource management specialties calls for collecting data to write job descriptions?
A.
job analyst
B.
job training specialist
C.
compensation manager
D.
EEO coordinator
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