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【单选题】
下列哪一种属于 IV 型超敏反应的机制A.
过敏性休克
B.
类风湿关节炎
C.
血清病
D.
结核菌素皮肤试验阳性
E.
系统性红斑狼疮
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【单选题】Don’t worry too much about ____ mistakes. They are ____ natural part of learning.
A.
/ , a
B.
the, a
C.
the, /
D.
the , the 1-5 BCBAC 6-10 ADCAC 11-15 CDBAC 16-20 BDACC 21-25 BADAD 26-30 DCAAC 31-35 AABB
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