【单选题】S11-3资产负债表是主要的会计报表,它反映企业某一特定日期的
【单选题】下列滚动轴承密封装置,其中_______是属于接触式密封。( )
【简答题】当证券不相关时,其组合线是一条直线。( )
【简答题】设函数y=f(x)在(0,+∞)上有定义,对于给定的正数K,定义函数 f k (x)= f(x),f(x)≤K K,f(x)>K ,取函数 f(x)= 5 2 x 2 -3 x 2 lnx ,若对任意的x∈(0,+∞),恒有f k (x)=f(x),则K的最小值为______.
【单选题】If the price level rises above what was expected and nominal wages are fixed, then
A.
production becomes less profitable so firms will hire fewer workers.
B.
production becomes less profitable so firms will hire more workers.
C.
production becomes more profitable so firms will hire fewer workers.
D.
production become more profitable so firms will hire more workers.
【简答题】设函数f(x)是定义在R上的奇函数,且f(a)>f(b),则f(-a)______f(-b)(用“>”或“<”填空).
【判断题】84保护层的功能是使混凝土结构中的钢筋免于大气的锈蚀作用。
【简答题】旅行社法定代表人变更,应当到所在地的工商行政管理部门备案。