【单选题】磁路的欧姆定律:对于一个材料相同、截面积相等的铁磁性材料构成的闭合磁路,则磁通等于( )
【简答题】在铰链四杆机构中,当最短构件和最长构件的长度之和小于或等于其他两构件长度之和时,取与最短杆相邻的 构件为机架,机构为 ;取最短杆为机架,机构为 ;取与最短杆相对的构件为机架,机构为____。 A .双摇杆机构 B.双曲柄机构 C .导杆机构 D.曲柄摇杆机构
【单选题】—Do you have any wishes? —________. I hope I'll be more active. [ ]
【单选题】听力原文:W: How is your job? I hope you can establish a good relationship with your new comrades. M: I couldn't feel better about it! I have forgotten my miserable days in the former company. Q: How does ...
A.
He is very satisfied with it.
B.
He has to spend the miserable days.
C.
He thinks it should be better.
D.
He has some problems with his comrades.
【单选题】磁路的欧姆定律:对于一个材料相同、截面积相等的铁磁性材料构成的闭合磁路,磁势等于()
【判断题】企业取得的土地使用权应作为无形资产核算,一般情况下,当土地使用权用于自行开发建造厂房等地上建筑物时,相关的土地使用权账面价值不转入在建工程成本,有关的土地使用权与建筑物分别按照其应摊销或应折旧年限进行摊销、提取折旧。( )