短文改错（共10小题；每小题1分，满分10分）

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。错误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：把多余的词用斜线（/）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）不记分。

Dear Brown,

Last summer I take a part-time job in the International Camp for children. I have told one more worker will be needed in this year and I think you are fit for it. How about join us? The camp is at the foot of a small hill closed to a river. It is such beautiful a place! We can hear birds singing happy all around. Everybody sleeps in tents, that is very exciting. We usually work only five hours a day, so we will have plenty of spare time visit the area and have fun. I am sure it will be an unforgettable experience. If you have interests in it, reply to me soon.

Yours,

Mary

若正反定型不一样，在排除试剂质量、技术、药物和人为因素后，可采取下列哪种方法？（）

A.室温下孵育30min

B.检测患者唾液中的A、B和H血型抗原物质

C.木瓜酶处理患者红细胞

D.用人血清抗A、抗B进行吸收放散

E.鉴定亚型