下列哪项不属于渔业法所规定的（　　）

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       十二月，项王至垓下，兵少，食尽，与汉战不胜，入壁；汉军及诸侯兵围之数重。项王夜闻汉军四面皆楚歌，乃大惊曰：“汉皆已得楚乎？是何楚人之多也？”则夜起，饮帐中，悲歌慷慨，泣数行下；左右皆泣，莫能仰视。于是项王乘其骏马，麾下壮士骑从者八百余人，直夜，溃围南出驰走。……汉骑追者数千人，项王自度不得脱，谓其骑曰：“吾起兵至今，八岁矣；身七十余战，未尝败北，遂霸有天下。然今卒困于此，此天之亡我，非战之罪也。今日固决死，愿为诸君快战，必溃围，斩将，刈旗，三胜之，令诸君知天亡我，非战之罪也。”乃分其骑以为四队，四乡。汉军围之数重。项王谓其骑曰：“吾为公取彼一将。”于是项王大呼驰下，汉军皆披靡，遂斩汉一将。是时，郎中骑杨喜追项王，项王瞋目而叱之，喜人马俱惊，辟易数里。项王与其骑会为三处，汉军不知项王所在，乃分军为三，复围之。项王乃驰，复斩汉一都尉，杀数十百人。复聚其骑，亡其两骑耳。乃谓其骑曰：“何如？”骑皆伏曰：“如大王言！”于是项王欲东渡乌江，乌江亭长舣船^①待，谓项王曰：“江东虽小，地方千里，众数十万人，亦足王也。愿大王急渡！今独臣有船，汉军至，无以渡。”项王笑曰：“天之亡我，我何渡为！且籍与江东子弟八千人渡江而西，今无一人还；纵江东父兄怜而王我，我何面目见之！纵彼不言，籍独不愧于心乎！”。

                                                                                                                                                                   （选自《资治通鉴·汉纪三》，有删节）

     【注释】①舣（yí）船：停船。

如图，天秤中的物体a、b、c使天秤处于平衡状态，则物体a与物体c的重量关系是(       )

    Many years ago, I was a shy boy and lived a very peaceful life. I liked school but I felt bored.

    And then I started the fourth grade. My teacher, Mrs. Chen, was a young woman who was good at writing, art and music. Her class was very interesting. With her help, I started Fun Club with some boys in my class. I also wrote a book called Through the Forest. And lots of my classmates liked it.

    However, I was surprised when fifty years later I got a letter about a reunion (聚会). A few days later, we had a reunion at Mrs. Chen's home. Reconnecting with Mrs. Chen was a journey back in time. Fifty years have passed, but my teacher still remembers every student. She even doesn't forget the class bully (欺负) — a boy used to hit me with snowballs on my way to school. Lots of teachers thought bullying was nothing serious at that time, but Mrs. Chen didn't agree. She put a stop to it at once when she found out about it.

    Now, in my mid-fifties, I appreciate the gifts Mrs. Chen has given me even more. It's never too late to say thanks to this fantastic teacher. I hope you are lucky enough to have one teacher like Mrs. Chen.