驾驶机动车驶离高速公路要经过减速车道减速后进入匝道。
参考答案：对
— Shall we go skateboarding after school?
— Sorry, my parents said that I _____ be at home early. [ ]
A. need
B. must
C. may
轮椅与床之间的转移方法有几种？
