皮皮学，免费搜题
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【单选题】
人工主动免疫获得的方式是A.
注射抗毒素
B.
注射胎盘球蛋白
C.
注射转移因子
D.
通过胎盘获得的IgG
E.
注射类毒素或疫苗
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【简答题】Home Alone It was Sunday afternoon. My brother and I were alone at home. My parents went for a party and asked me to look after my brother. I was doing my homework while my younger brother was watchi...
【多选题】缺乏可导致贫血的物质有 ( )。 A. 维生素 A B. 维生素 C C. 维生素 D D. 叶酸 E. 尼克酸
A.
维生素 A
B.
维生素C
C.
维生素D
D.
叶酸
E.
尼克酸
【简答题】完形填空 It was Sunday afternoon. My brother and I were alone at home. My parents went for a party and asked me to look after my brother. I was doing my homework while my younger brother was watching TV...
【简答题】It was Sunday afternoon. My brother and I were alone at home. My parents went for a party and asked me to look after my brother. I was doing my homework while my younger brother was watching TV. Sudde...
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