一台并励直流发电机,若转速升高20%,则电势()。
A.不变
B.升高20%
C.升高大于20%
D.升高小于20%
参考答案:C
.Looking back to the 200-hour struggle in the dark, the rescued miners say it’s faith in being rescued that______________
A.pulled down them
B.pull off them
C.pulled them up
D.pulled them through
下列税率中,属于城镇土地使用税适用的税率是( )。
A.有幅度的差别定额税率
B.累进税率
C.地区差别比例税率
D.行业差别定额税率