阅读短文，根据短文选择正确的答案。

    Uncle Wangworks in 1 bookstore in the middle of the city. The shop is not far from his home. It is about three kilometers (公里) away. So Uncle Wang seldom (很少) 2 to work by bus. He usually goes there 3 bike, sometimes on foot. It takes him ten minutes to get there by bike and forty minutes on foot. Today his bike is broken.  He wants to walk there. Now he is having breakfast. At ten to eight, he leaves home and walks to work.  It's twenty 4 earlier than usual.  His work starts at half past eight in the morning and 5 at a quarter (一刻钟) to five in the afternoon.

小强同学在许多方面长的更像父亲，对此正确的解释是（ ）

某程序框图如图所示，该程序运行后输出的k的值是（　　）

位于我国地势的第二、三阶梯分界线上，东北一西南走向，又是华北平原和黄土高原分界线的山脉是（   ）