题目

阅读理解Ifyou are given only one yuan, could you live in a city for one day? It seems thismay be a little difficult. But students from Xi'an did it. OnApril 10, more than 60 students from the Middle School Attached to NorthwesternPolytechnical University took part in the One Yuan Metropolis Survival. The charitable(慈善事业的)organization for teenagers called Imperceptible Education held this activity. Studentsnot only have to live, but they also have to deal with a lot of hard tasks. It hashappened in eight cities and is going to four others, including Beijing, in June.Tomake money, 由图中曲线a、b表示物质跨（穿）膜运输的两种方式，下列表述正确的是（　　） A、方式b的最大转运速率与载体蛋白数量有关，还可能与能量的供给相关B、脂溶性小分子物质不能通过方式a运输C、与方式a有关的载体蛋白覆盖于细胞膜外表面，其始终处于运动之中D、抑制细胞呼吸对方式a和b的转运速率均有影响