题干
用所给词的适当形式填空
（1）—How does Jim get to school?
—He ____ (take) the subway.
（2）My sister usually ____ (go) to school by train.
（3）Yang Lei needs about 10 minutes ____ (get) to school.
（4）How far ____ your aunt ____ (live) from here?
（5）How long does it take you ____ (walk)to the train station?
答案(点此获取答案解析）
takes,goes,to get,does,live,to walk
，向量
，且
，则实数
等于（ ）