【多选题】移动端网站优化和 PC 端网站优化的区别有( )
【简答题】主轴变频控制过程中出现“主轴电动机不能运行的故障”。简述其故障原因
【简答题】Using Boolean notation, write an expression that is a 1 whenever one or more of its variables (A,B,C,and D) are 1s
【单选题】Using DeMorgan’s Law, write an expression for the complement of F if F(x,y,z) = xy + xz + yz. The correct one is:
A.
(x + y)(x + z)(x' + z)
B.
(x' + y')(y'+ z)(x' + z)
C.
(x' + y')(y'+ z')(x' + z)
D.
(x' + y')(y'+ z')(x' + z')
【简答题】write an expression that is a 1 only if all of its variables (A,B,C,and D) are 1s
【简答题】借贷期限越长,风险越大,利率越______;反之,借贷期限越短,风险越小,利率越______。
【多选题】关于影响利率高低的因素,下列说法错误的是( )。
A.
在社会平均利润率不变的情况下,利率高低取决于金融市场上借贷资本的供求情况
B.
借贷资本供过于求,利率便上升;反之,求过于供,利率便下降