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【多选题】
下列各种不同类型导线一般使用场所正确的有( )。A.
铜母线作为汇流排多用于高低压配电柜(箱、盘、屏)中
B.
钢母线多作为系统工作接地或避雷接地的汇流排
C.
裸导线主要用于适于采用空气绝缘的室外远距离架空敷设
D.
绝缘线缆主要用于不适于采用空气绝缘的用电环境或场合
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【单选题】Psychologists take opposing views of how external rewards, from warm praise to cold cash, affect motivation and creativity. Behaviorists, who study the relation between actions and their consequences,...
A.
the choice between spiritual encouragement and monetary rewards
B.
the amount of monetary rewards for students' creativity
C.
the study of relationship between actions and their consequences
D.
the effects of external rewards on students' performance
【简答题】FTP服务的默认端口号是____,Web服务的默认端口号是____。
【单选题】—Where would you like to visit? —I'd like to visit . I don't like noisy cities.
A.
somewhere warm
B.
warm everywhere
C.
anywhere cool
D.
somewhere quiet
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