一台数码相机现在售价3780元,比原价减少420元,也就是比原价降低______%.
420÷(3780+420)
=420÷4200
=10%.
答:比原价降低10%.
故答案为:10.
.
__ from the motherland for about a century, Hong Kong returned to China in 1997.
A.Being separated
B.Having separated
C.Having been separated
D.to be separated
治疗腹痛,宜首选()
A.章门、中脘、脾俞
B.三阴交、中脘、天枢
C.足三里、中脘、胃俞
D.足三里、中脘、天枢
E.以上都不对