问题
填空题 案例分析题
下图表示病菌感染人体后,免疫细胞做出应答的部分过程。请据图回答问题。
⑦与④功能上的区别是(),由④分化为⑦的过程中,④细胞核内的()通过核孔进入细胞质,该分子的作用是作为()的模板。
答案
参考答案:⑦可以分泌抗体而④不能;mRNA;合成蛋白质
下图表示病菌感染人体后,免疫细胞做出应答的部分过程。请据图回答问题。
⑦与④功能上的区别是(),由④分化为⑦的过程中,④细胞核内的()通过核孔进入细胞质,该分子的作用是作为()的模板。
参考答案:⑦可以分泌抗体而④不能;mRNA;合成蛋白质
Some people have very good memories(记忆力)and can ___learn quite long poems(诗歌)by heart. __ people have poor memories and can’t remember things ____they have said them over and over again. The famous English writer, Charles Dickens, said that he could walk down any long street in ____ and then tell you the names of all the shops he had __. Many great men of the world have wonderful memories. A good memory is a great help __a language. Everybody learns __ own language by remembering the things he heard when he was a small child. Some children like those who live in foreign countries with their parents, seem to learn two languages as ___ as they do one. In school it is not so easy for pupils to learn a second language because they have very __ time for it. Memory ___a diary that we keep every day.
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