(单选题)50: 与胶原蛋白羟脯氨酸及羟赖氨酸的合成有关的是??( )
A: 维生素A
B: 维生素C
C: 维生素D
D: 维生素E
E: 维生素K
1.(text)I.Vocabularyskills(2points) Completethefollowingstatementsbychoosingth...
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1.(完形填空题)1.ListentotheconversationanddecidewhetherthefollowingisTrue(T)orF...
1.(填空题)1.Listenandfillintheblanks. a_0401_01.mp3 Kenji:Peter,areyougoingdown...