刘志成有散文集____、《塞北风情录》、____、《大道通天》等。

如图所示，一个金属小球静止在光滑斜面上，球上有两根细绳A、B悬于水平天花板，B绳处于竖直位置，则下列说法正确的是（   ）

    What do you do at the weekends? Some people like to1 at home. But others like to go for a walk2 play football. My friend Jack works hard in a factory on3. At the weekends he always 4 different things. On Saturday he5 his car and on6 he goes with his family to a village by car. His uncle and aunt have a farm there. It's not a7 one, but there's always8 to do on the farm. The children help with the animals and give them their9. Jack and his wife help in the field. At the end of the day, they are all10 and want to have a big meat very much.