2025知到答案 电机及拖动基础(山东联盟)(青岛黄海学院) 最新智慧树满分章节测试答案
第一章 单元测试
1、单选题:
按照磁滞回线的形状不同,铁磁材料可分为( )和矩磁材料。
选项:
A:软磁材料; 硬磁材料
B:硬磁材料; 铁磁材料
C:铁磁材料;永磁材料
D:软磁材料; 铁磁材料
答案: 【软磁材料; 硬磁材料】点我阅读全文
1、单选题:
按照磁滞回线的形状不同,铁磁材料可分为( )和矩磁材料。
选项:
A:软磁材料; 硬磁材料
B:硬磁材料; 铁磁材料
C:铁磁材料;永磁材料
D:软磁材料; 铁磁材料
答案: 【软磁材料; 硬磁材料】点我阅读全文
1、多选题:
Features that distinguish financial decisions from other resource allocation decisions are ( )
选项:
A:the costs and benefits of financial decisions not spread out over time.
B:the costs and benefits of financial decisions usually not known with certainty in advance by either the decision makers or anybody else.
C:the costs and benefits of financial decisions spread out over time.
D:the costs and benefits of financial decisions usually known with certainty in advance by either the decision makers or anybody else.
答案: 【the costs and benefits of financial decisions usually not known with certainty in advance by either the decision makers or anybody else.;
the costs and benefits of financial decisions spread out over time.】点我阅读全文
1、多选题:
1、《油层物理》课程内容包括()。
选项:
A:油藏流体的高压物性
B:油藏岩石的物理性质
C:提高原油采收率的机理
D:饱和多相流体的油藏岩石的物理性质
答案: 【油藏流体的高压物性;
油藏岩石的物理性质;
提高原油采收率的机理;
饱和多相流体的油藏岩石的物理性质】点我阅读全文