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问题 写作题

书面表达。

有的同学长大后想当医生，有的想当老师，你长大后想当什么呢？

请以“When I grow up.”为题写一篇不少于50词的作文。

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答案

When I grow up

      When I grow up, I want to be an engineer. I want to build a big house and a small house for my father and mother. We will live together. There will be a garden and playground in front of the house. We will growbeautiful flowers and fruit trees in the garden. We will grow grass in the playground.答案不唯一

单项选择题

双层皮肤替代物Pelnac的主要成分是（）

A.丝素蛋白和糖胺聚糖

B.胶原蛋白和硅胶膜

C.丝蛋白和聚氨酯

D.硅胶和聚氨酯

E.胶原蛋白、糖胺聚糖和硅胶
查看答案
单项选择题

下列体位姿势不能锻炼人的平衡感的是（）

A.敬礼式

B.幻椅式

C.树式

D.束角式
查看答案