皮皮学，免费搜题
登录
搜题
【判断题】
单线制的零线截面不小于相线截面的50%。( )(1分)A.
正确
B.
错误
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【多选题】如图所示为理想变压器，电表均可视为理想电表，原线圈接线柱接电压u＝311sin314t（V）的交流电源。当滑动变阻器的滑片P向下滑动时，下列说法正确的是：（）
A.
A 1 示数变小
B.
A 2 示数变小
C.
A 1 示数不变
D.
V 2 示数变大
【单选题】(2019·北京名校一模)如图所示,一理想变压器的原线圈接正弦交流电源,副线圈接有电阻R和小灯泡.电流表和电压表均可视为理想电表.闭合开关S,下列说法正确的是( )
A.
电流表A 1 的示数减小
B.
电流表A 2 的示数减小
C.
电压表V 1 的示数减小
D.
电压表V 2 的示数减小
【简答题】The seasons in Australia are not like ours. When it is winter in China, it is summer there. Australia is a southern country. It is in the south of the world. June, July and August are the winter month...
【简答题】人们把水解时能生成脂肪酸的天然产物称为类脂, 其中包括( )、( )和( )。
【简答题】Which of the following countries is Jane most likely to go? [ A] Canada. [B]Australia. [C]Italy.
【简答题】根据车票信息，完成句子。 the U. K. — Australia Ticket I need a ticket ___________ the U. K. ___________ Australia. Beijing — Shanghai Ticket I need a ticket from ___________ to ___________.
【简答题】The seasons in Australia are not like ours. When it is winter in china, it is summer there. Australia is a southern country, it is in the south of the world. July and August are the winter months; Sep...
相关题目：