一条脚踏船可坐2人，7条脚踏船可坐多少人？*F5L.^4X3P(L5h3Z5},c1I4j
算式：提示/\.l-t,v9K0R:v-z-[8S'E'S'a/@2i*F5L.^4X3P(L5h3Z5},c1I4j
答：7条脚踏船可坐(x3z7y/t*I8]'Q人。*F5L.^4X3P(L5h3Z5},c1I4j