皮皮学,免费搜题
登录
搜题
【多选题】
导线截面选择的依据是以下几点:()。
A.
按经济电流密度
B.
按发热条件
C.
按允许电压损耗
D.
按机械强度
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
【判断题】色调与饱和度合称为色度( Chromaticity ),它既说明彩色光的颜色类别,又说明颜色的深浅程度。
A.
正确
B.
错误
【简答题】丝锥是加工的()工具,有手用丝锥和机用丝锥。
【简答题】丝锥是加工螺纹的工具。有()丝锥和()丝锥。
【简答题】丝锥是加工()的工具,有()丝锥和()丝锥。
【多选题】以下关于《意见》的总体要求,基本原则说法正确的有( )
A.
坚持改革开放,破除体制机制性障碍
B.
坚持以人为本,效益第一,寓管理于服务之中
C.
坚持以入境旅游为重点,积极发展国内旅游,有程序的发展出境旅游
D.
坚持因地制宜,突出优势,推动各地旅游业特色化发展
E.
坚持节能环保,合理利用资源,实现旅游业可持续发展
【简答题】Rewrite the following sentences as required. (根据所给要求,改写下列句子。每空格限填一词。) 1. Jack has to look after her little brother at weekends. (改为一般疑问句) _________ Jack _________ to look after her little brother at w...
【简答题】我们所用WORD、EXCEL均属于 软件。
【简答题】A: Where didi you go on vocation? B: Is it a girl or a boy? C: Did your parents go there with you? D: What does she look like? E: What are you doing? A: Hi, Julia!_____6___________ B: Hi, Tom!I a...
【简答题】_______2._______3._______4.________5.________6.________7._______8._______9._________10._________ 1)A. Work in New York B. become a teacher. C. go back to school D. m...
【单选题】Which one is used as an expression in the pre-closing part in an e-mail?
A.
Yours sincerely
B.
I look forward to hearing from you.
C.
We would like to place a trial order.
D.
Dear Tom
相关题目: