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举一反三
【单选题】Interferon For several years, scientists have been testing a substance called interferon (干扰素),a potential wonder drug that is proving to be effective in treating a variety of ailments, including viru...
A.
Right
B.
Wrong
C.
Not Mentioned
【单选题】患儿，男，3岁，反复化脓性感染并持续性咳嗽入院，同时患甲减并心脏畸形，皮试中结核菌素、白色念珠菌素等均呈阴性反应，应高度怀疑为（）
A.
原发性补体系统缺陷
B.
原发性T细胞缺陷
C.
原发性B细胞缺陷
D.
原发性吞噬细胞缺陷
E.
以上都不可能
【单选题】对头孢菌素的错误描述为（）
A.
与青霉素仅有部分交叉过敏现象
B.
抗菌作用机制与青霉素类似
C.
与青霉素类协同抗菌作用
D.
第三代药物对革兰阳性菌和革兰阴性菌的作用均比第一、二代强
E.
第一、二代药物对肾均有毒性
【单选题】Interferon For several years, scientists have been testing a substance called interferon (干扰素),a potential wonder drug that is proving to be effective in treating a variety of ailments, including viru...
A.
Right
B.
Wrong
C.
Not Mentioned
【单选题】Interferon For several years, scientists have been testing a substance called interferon (干扰素),a potential wonder drug that is proving to be effective in treating a variety of ailments, including viru...
A.
Right
B.
Wrong
C.
Not Mentioned
【单选题】头孢菌素类抗生素在发展过程中，按其发明年代的先后和抗菌性能的不同，在临床上可将其划分一、二、三、四代 第一代头孢菌素
A.
对革兰阳性菌和β-内酰胺酶的抵抗能力较弱
B.
对革兰阴性菌和β-内酰胺酶的抵抗能力较弱
C.
抗菌谱广
D.
对革兰阴性菌活性较强
E.
以上答案都不符合