随着复利次数的增加,同一个年名义利率求出的有效年利率会不断______,增加的速度越来越______。( )
A.减少、快
B.增加、快
C.增加、慢
D.减少、慢
参考答案:C
()变频变压调速是通过改变异步电动机供电电源的频率而调节电动机的同步转速,也就是改变施加于电动机进线端的电压和电源频率来调节电动机转速。
The old man said that he would ________ more people who would not have too much work to do in the week to come to do the construction work.
A.let
B.promise
C.get
D.make