单价比与比例★★★★★同型源自真题 2014-05✓ 已校验Dario's scooter can travel 45 miles on a gallon of gas, and gas currently costs $3 per gallon. How many miles can Dario travel on $15 worth of gas?Dario 的踏板车每加仑汽油能行驶 45 英里，汽油每加仑 3 美元。用 15 美元的汽油，Dario 能行驶多少英里？(A)5(B)45(C)135(D)225(E)675