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【简答题】
红细胞表面有A抗原，血清中有抗B抗体，其血型为（）型。
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【简答题】阅读理解。 A little girl stood near a small church of Philadelphia in the USA. She had been turned away (拒之门 外) from the Sunday School of the church because it was'too crowded'. 'I really wished to go to S...
【简答题】II Synonym Discrimination (60 points) Directions: there are several groups of synonyms; choose the right words in their proper forms. Group A: breast; chest; bosom 1.They were welcomed into the _____...
【单选题】在 Haworth 结构式中,判断环状单糖的 α- 和 β- 构型,以下说法正确的是:
A.
半缩醛或半缩酮羟基朝环上方的为 α- 构型。
B.
半缩醛或半缩酮羟基朝环下方的为 α- 构型。
C.
半缩醛或半缩酮羟基与末端羟甲基在环同侧为 α- 构型。
D.
半缩醛或半缩酮羟基与末端羟甲基在环同侧为 β- 构型。
【简答题】II Synonym Discrimination (60 points) Directions: there are several groups of synonyms; choose the right words in their proper forms. Group A: breast; chest; bosom 1.They were welcomed into the _____...
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