如图是某生物体内的细胞分裂图，图Ⅰ中的1、8上分别有基因M、m，根据有关信息，判断下列叙述正确的是

①便于严格保密

②利于提高效率

③加强君主专制

④其实是有吏无官

有x支球队参加篮球比赛，共比赛了45场，每两队之间都比赛一场，则下列方程中符合题意的是（   ）

根据短文内容，判断句子正误。

    Bangkok is the capital(首都)of Thailand. It is very different from Shenzhen. There are many temples in Bangkok. It is hot all year round, so there are a lot of fruits. The most famous f fruit is durian(榴莲). There are many rivers here, so the market on the water is very famous. You can buy flowers, vegetables, fruits and other things on the boats.

  The best time to visit Thailand is at the end of March or the beginning of April, because it is the most famous festival in Thailand--Water Festival. It is the beginning of their New Year. Before the festival, people clean their house and cook nice food. During the festival, people sing, dance and throw water on each other. They think that water can clean away bad things and bring good luck.

  How in interesting it is!

根据提示默写。

①做事情应学会换位思考，自己不愿意接受的事物，也不要强迫别人接受，用孔子的话说就是：____，____。

②文天祥在《过零丁洋》中感慨国势危亡、人生坎坷的两句诗是：____，____。

③陆游《游山西村》中暗含作者摆脱逆境的强烈愿望，同时包含深刻哲理的两句诗是：____，____。

④在余光中的《乡愁》诗中，乡愁是一枚小小的邮票，____。____，乡愁是一湾浅浅的海峡。