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【简答题】Lin Da: Is there anything new in the paper today? John: Yes. 1 _________________________________________. Lin Da: What’s that? John: BBS. It is 2 ___________________________________. Lin Da: What’s th...
【多选题】关于蛋白聚糖的叙述正确的是( )
A.
蛋白聚糖是一类糖蛋白，由一条或多条糖胺聚糖和一个核心蛋白共价连接而成
B.
蛋白聚糖中蛋白质的含量比糖的含量高
C.
蛋白聚糖中糖的含量高于蛋白质
D.
蛋白聚糖具有生物学功能
【简答题】阅读表达 Good morning,everyone.My topic(话题)for today is 'How Americans Value(重视) Time'. Americans think a lot about time.From childhood(童年)they learn to value time.As children, parents teach them to be on...
【简答题】根据对话内容选项恰当的句子，有两项为多余的。 A. What time is it B. What day is it today C. What's the date today D. What can we do now E. Do you have a sharpener F. Let's go to the supermarket G. Let's to and see A: Excuse...
【简答题】蛋白聚糖多聚体由蛋白聚糖单体借____________和__________聚合而成。
【简答题】Listen to the dialogue for the last time and fill in the blanks according to what you have heard. Lin Da: Is there anything new in the paper today? John: Yes. 1 __________________________. Lin Da: Wha...
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