下列变化属于物理变化的是____
A．酒精挥发
B．食物腐烂
C．酸雨侵蚀
D．____．
根据意思写词语。
①常指用线条画出轮廓；双钩，也指用简单的笔墨描写事物的大致情况。____
②形容吃了败仗狼狈逃窜的情形。____
③眼睛看不见东西，比喻认识不清。____
④比喻力量所达到的地方，一切障碍全被扫除。____
—I worked as a volunteer in the school library last Friday afternoon.
—Really? Can I go with you next time?
______is Jack. His Chinese name is Ma Fang.
