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【单选题】
定时限过电流保护的动作电流需要考虑返回系数,是为了( )A.
提高保护的灵敏性
B.
外部故障切除后保护可靠返回
C.
解决选择性
D.
与下一级保护配合
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
举一反三
【简答题】Yalden thinks that more effective foreign language learning will take place if the emphasis is on ______.
【简答题】The lecturer says that children take more interest in learning if ______ do.
【单选题】What can be inferred from paragraph 6 about learning?
A.
Learning cannot take place unless all of the senses are stimulated.
B.
Scents can strengthen the ability to hold new information in the memory.
C.
It is easier to recall previous learning than it is to retain new information.
D.
Children will not learn much if they are distracted by offensive odors.
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