问题
多项选择题
纸片扩散法药敏试验结果失控的原因有（）
A.标准菌株被污染
B.接种的菌悬液浓度太高或太低
C.量取抑菌环直径时读数错误
D.孵育温度不正确
E.0.5麦氏管标准管未摇匀或过期失效
答案
参考答案：A, B, C, D, E
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纸片扩散法药敏试验结果失控的原因有（）
A.标准菌株被污染
B.接种的菌悬液浓度太高或太低
C.量取抑菌环直径时读数错误
D.孵育温度不正确
E.0.5麦氏管标准管未摇匀或过期失效
参考答案：A, B, C, D, E
Americans value competition. They believe that competition out the best in any individual. They claim that it challenges or even each person to produce the very best that is humanly possible. , the foreign visitor will see competition encouraged in the American home and in the American classroom, at the youngest age levels. You may find the placed on competition confusing, especially if you come from a society that promotes cooperation competition among individuals. But Americans teaching in the Third World countries find the lack of competition in a classroom situation equally . They soon learn that what they had thought to be one of the universal human qualities only a particularly American or Western value.
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