新木兰辞

    咣当复咣当，木兰在书房。不闻读书声，唯闻东西响。

    拾起碎茶杯，问女何所想。女儿无所想，心中堵得慌。硕士毕业后，工作无处寻。应聘三十家，个个不让进。细细问原因，嫌是女儿身。决意女扮男，只身闯深圳。

    东市剪长发，西市买西装，南市练举止，北市学粗腔。旦辞爹娘去，暮色下车忙，不闻爹娘唤女声，但闻车站人流闹嚷嚷。旦辞车站去，暮坐办公室，不闻爹娘唤女声，但闻白领手机叮当响。

    白天步履匆，夜晚加班忙。全国各地跑，业务节节上。同事喜合作，领导频表扬。总部见总裁，总裁走上前。肩膀拍三拍，奖赏十万元。总裁问所欲，木兰不贪钱与权，愿还女儿身，业绩超以前。

    上司闻她回，满脸是迷茫。女士闻她回，偷偷理红妆。男士闻她回，手沾唾沫捋发忙。开我公司门，坐我电脑旁。当窗理云鬓，对镜帖花黄。东风习习来，满室飘清香。出门看客户，客户皆惊忙。交往一两年，不知木兰是女郎。

    雄兔脚扑朔，雌兔眼迷离。两兔傍地走，安能辨我是雄雌？

    Henry is nine years old. It is half a kilometer from his home to school, so he goes to school on foot every day. He usually gets home at five in the afternoon.

    It was Thursday, and he came home one hour late. When he came home, his mother asked him, “Why are you late, Henry?”

    “My math teacher Mr. Smith is very angry (生气的）with me and asks you to go to his office tomorrow.”

    “Why does Mr. Smith ask me to go to his office?” his mother asked. “He asked us a question and no one could answer it, but I could.”

    “What a clever boy! Then what was his question?” his mother asked with a big smile.

    “His question was ‘Who put some ice-cream on my chair and made my trousers dirty? "said Henry.

设a、b∈{1，2，3}，则方程ax+by=0所能表示的不同直线的条数是____ ．