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【多选题】
行区等级由 2 个代码组成，用于确定跑道的 和 。
A.
长度
B.
宽度
C.
硬度
D.
强度
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【简答题】Unit 5 Topic 1 Section C 学校 班级 学 生 一、 根据汉语或音标提示完成句子。 1. The father was / ˈləʊnlɪ / and often became angry. 2. She taught the children to sing / ˈlaɪvlɪ / songs. 3. They performed short funny plays to...
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查看完整题目与答案
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胰岛素具有四级结构
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一条多肽链就是一个亚基
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蛋白质亚基的排列是对称性的
查看完整题目与答案
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正确
B.
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查看完整题目与答案
【简答题】A．He sees his sister very seldom. B．He sent Mark something on his 19th birthday. C．He always walked to work. D．He lives with his sister and her family.
查看完整题目与答案
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查看完整题目与答案