农村常可见到这样的现象，一些年届七旬的老翁，要向三岁稚童称“叔叔”或“爷爷”。永定俗谓：“白头哥，坐地叔”(即对平辈的白头老翁仅呼“哥”，而尚在襁褓中的叔辈，即使上年纪老者也要唤其为叔)。这一现象反映了宗法制（  ）

“大宋皇帝谨致誓书于大契丹皇帝阙下：共遵成信，虔奉欢盟，以风土之宜，助军旅之费，每岁以绢二十万匹，银一十万两……差人搬送至雄州交割。”下列史实哪项与此盟约无关（    ）

下图是宋朝交子，下列说法不正确的是（   ）

短文改错。

假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10 处语言错误，每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。

增加：在缺词处加一个漏字符号( )，并在其下面写出该加的词。

删除：把多余的词用()划掉。

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意：1.每处错误及其修改均仅限一词；2. 只允许修改10 处，多者（从第11 处起）不计分。

    One Monday afternoon, we were playing the basketball on the playground while I suddenly slipped and fell over. On seeing that, all my classmates rushed to me. Under the help of several other students, Li Xiang, one of my best friend put me on his back and head for the clinic immediately. It turned out that my right ankle got injured but I had to be sent to hospital. He did not leave until an ambulance was arrived. The following day, he came to see me. To my greatly relief, he brought textbooks to them and helped me with my lessons. It was a great pleasure have such a devoting friend.