问题 单项选择题 A1/A2型题

PNAd的功能是()。

A.淋巴细胞向淋巴结归巢

B.淋巴细胞向皮肤炎症部位归巢

C.血小板粘附和淋巴细胞向粘膜相关淋巴组织归位

D.淋巴细胞炎症部位及粘膜相关淋巴组织归位

E.以上均错

答案

参考答案:A

写作题

书面表达

Jill是一名初三的学生。她很喜欢玩电脑,但她现在每天有很多的功课,没时间去做自己的兴趣爱好。她感到很苦恼。她写了封信给Sigmund,希望能得到一些建议。

不少于60个字,开头结尾已给出,不计数。

Dear Sigmund,

I am a Grade 9 student.                                                       

                                                                             

                                                                             

                                                                             

                                                                             

                                                                             

                                                                             

                                                                             

                                                                             

Best wishes.

Yours sincerely,

Jill

单项选择题