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| 书面表达。 |
| Read the letter from Tom, and write a reply.（要求:用三句虚拟语气的句子,60词左右） Dear Sir, I need some help, I can't speak English well, and I am very shy so I'm terrified of speaking in front of the class. What do you think I should do? Your student, Tom __________________________________________________________________________________________________________________________________________________ |
今天天气很好。海滩上有很多人。请根据图片描述出他们在干什么。注意现在进行时的应用和动词的现在分词形式。（50―60词左右）
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(1)造血干细胞转变为a、b、c等细胞的过程被称为_________。
(2)③过程是在X的刺激和a细胞等的参与下共同完成的。与③过程相比，④过程的应答特点是______。
(3)⑤过程的产物Y的化学本质是___ ___，参与其合成并分泌的膜性细胞器 、高尔基体及线粒体。
(4)若X是禽流感病毒，则患者体内消灭X必须依靠a增殖分化的淋巴细胞去裂解__ _ ___。如果X是HIV，则由于图中___ ___细胞的大量死亡，导致患者几乎丧失一切免疫功能而死亡。 查看习题详情和答案>>
1.________________________________________
2.________________________________________
3.________________________________________
观察A、B、C三幅图，用英语表达出Mimi的位置。
根据前三幅图联想，画出第四幅图中Mimi的位置，并用英语表达。
Where is Mimi?
In Picture A: _____________________________________________________________
In Picture B: _____________________________________________________________
In Picture C: _____________________________________________________________
In Picture D: _____________________________________________________________