(单选题)29: 乳酸脱氢酶是由2种亚基组成的X聚体，可形成Y种同工酶，其X、Y的数值依次是( )
A: 2，3
B: 3，4
C: 4，5
D: 5，6
E: 6，7
1.(text)I.VocabularySkills（2points）Whichofthewordsbelowcontainaprefixwithanega...
1.(匹配题)I.Vocabularyskills（3points） Lookatthecolumnsbelow.Matcheachvocabular...
1.(完形填空题)1．ListentotheconversationanddecidewhetherthefollowingisT(true)orF...
1.(完形填空题)1．ListentotheconversationanddecidewhetherthefollowingisTrue(T)orF...
1.(完形填空题)1．ListentotheconversationanddecidewhetherthefollowingisTrue(T)orF...
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