A.85% | B.八成五 | C.15% |
A. | B.40% | C. | D.五成 |
A.7% | B.17% | C.30% | D.70% |
A.126 | B.150 | C.294 | D.350 |
A.提高了20% | B.提高了4% | C.降低了4% |
A.20% | B.80% | C.120% | D.102% |
A.1800×20% | B.1800×(1-20%) | C.1800×(1+20%) |
A.20% | B.120% | C.80% | D.2% |
A.70 | B.0.7 | C.7 |
A.一个数是另一个数的几倍 | B.一个数是另一个数的几分之几 | C.一个数是另一个数的十分之几 |