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【多选题】
电路的作用有两个,分别是()。(知识点:电路)A.
电能的传输和转换
B.
传递和处理信号
C.
使电灯发光
D.
让机器运转
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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】What are the three general purposes for giving speeches?
A.
To persuade, act , & adjust your speaking style
B.
To inform, persuade, & entertain
C.
To inform, make people laugh, & have fun
D.
None of the Above
【简答题】化简（1） 27 - 12 + 45 计算（2） si n 2 45°- 27 + 1 2 ( 3 -2006 ) 0 +6tan30°
【单选题】According to the passage, successful game strategy depends on______.
A.
the ability to adjust one's behavior. in light of the behavior. of others
B.
one's awareness that there is safety in numbers
C.
the degree of stability one can create in one's immediate environment
D.
the accuracy with which one can predict future events
【单选题】选择一个选项将该句补充完整:We are very sorry that the product you bought is sold_____. Would you mind exchanging it to others in our store?( )
A.
off
B.
away
C.
out
D.
on
【单选题】It is difficult to ________ the sample that is on the slide unless the microscope is adjusted properly.
A.
overlook
B.
discern
C.
disclaim
D.
distract
【单选题】— Is Nie’er Library ______ to ordinary people? — Of course.
A.
accessible
B.
available
C.
reasonable
D.
adjustable
【简答题】计算： （1） 12 - 27 （2） 6 × 15 × 10 （3） ( 2 +2 3 )( 2 -2 3 )
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