一物体做匀变速度直线运动，某时刻速度的大小为4m/s，1s后的速度大小变为10m/s，在这1s的时间内，该物体的（   ）

史学家修昔底德在《伯罗奔尼撒战争史》中写下了“男人就是城邦”之句。根据雅典民主政治的特点，以下解释最确切的是

阅读下面短文，把A---D四个句子填入文中空缺处，使短文内容完整、正确。

    I'm Lin Tao. I live in a beautiful apartment.____ There are eight floors in the building and there is a parking lot near it. We park our cars there.
    Our apartment is in the countrysides. ____  It's four kilometers from the center of the city. My father works in the city, and he goes to work by car every day.
____  One is for my parents. One is me and another for my brother. We don't have a garden, but there is a small balcony(阳台).

____ I often water the flowers with my brother. Our apartment is small but we are very happy in it. I love my home.
____ What is the best title （标题）for the passage?
 A. My family      B. My home       C.  My father

      for the first time.