Sally is a good girl. She never ____  up late. Her mother wakes her up（唤醒）at 6:00 a.m. From a quarter ____  six, she begins to do sports. The she comes back and has ____  at six forty. After that, she goes to school. Sometimes she ____ her bike.
At school, Sally has seven classes on ____ . Sally is good at（擅长）English. She san speak English very well. After school she often plays ____  games with her ____ . Then she goes home by bus. She gets home before 6:00 p.m.. After
____  she begins to do her ____ . Then she ____  TV for a while, she always goes to bed before half past ten.

丽丽有个心愿：骑骆驼，赏沙漠风光，参观金字塔、运河、清真寺，交穆斯林朋友。丽丽的理想去处是（    ）

如图所示，物体A在光滑斜面上自由滑下，请画出物体A所受重力的示意图．

读“热力环流示意图”（a、b表示等压面），回答下列各题。