【简答题】车床主轴如图所示,在转化为当量轴以后,其抗弯刚度EI可以作为常量。试求在载荷F作用下,截面C的挠度和前轴承B处的截面转角。
【判断题】教玩具作为幼儿生活与学习的媒介,促使幼儿不断地关注自己与他人,不断地加深对世界的认识。
【单选题】用手臂围住肩膀,紧握对方的手,轻摸脸颊等等,所传递的爱的语言是( )。
【单选题】(1分) 用手臂围住肩膀,紧握对方的手,轻摸脸颊等等,所传递的爱的语言是( )。
【简答题】车床主轴如图所示,在转化为当量轴以后,其抗弯刚度 EI可以视为常量。试分别应用卡氏定理、单位载荷法求在载荷P作用下,截面C的挠度。
【单选题】We learn from the text that_____
A.
shareholders often cast negative influence on the well-being of workers.
B.
owners of traditional firms enjoyed a good relationship with their employees.
C.
limited liability companies were too large to run smoothly.
D.
trade unions had a positive role on workers and the management.