题目

A night in a hotel in Shanghai costs ______ a week in some faraway cities.A. as much as three times                        B. three times the price of C. three times price of                      D. as much three times as 答案：B北京奥运会祥云火炬的燃料为丙烷（C3H8）．下列关于丙烷性质的描述，属于化学性质的是A.无色气体B.易燃烧C.沸点为-42.1℃，易液化D.微溶于水，可溶于乙醇