题目

Several days ago,,1 went to my aunt’s home and saw my cousin who is studying English linguistics in a university. He showed me his learning materials.H ere are two pages of tNow I know at some point in history, the meanings of some common words that we see every day meant something much different. The English language is developing all the time.NiceGenerally speaking, the word “nice” is quite an expression of praise. However, back in the late 12th century, if someone said you were “nice”, it was far from saying good words about you.Very long ago, “nice” was used to mean “图一为鸡卵结构示意图,图二为鸡胚胎发育示意图,据图回答(1)图一中[3]和图二中[7]的结构名称是    ,它的主要作用    (2)图二中的[6]是胚胎,它是由图一中的[5]    发育而来的(3)既对卵细胞 有保护作用,还能为胚胎发育提供水分和养料的结构是[    ]    (4)与两栖动物的卵相比,鸟卵更适应陆地上的发育,是因为鸟卵具有[    ]    .
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