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【单选题】
下列生化反应阴阳性对照菌株选择，错误的是A.
氧化酶试验：阴性-铜绿假单胞菌；阳性-大肠埃希菌
B.
V-P试验：阴性-大肠埃希菌；阳性-产气肠杆菌
C.
硝酸盐还原反应：阴性-乙酸钙不动杆菌；阳性-大肠埃希菌
D.
触酶试验：阴性-A群链球菌；阳性-金黄色葡萄球菌
E.
苯丙氨酸脱氨酶试验：阴性-大肠埃希菌；阳性-变形杆菌
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【简答题】A．During the journey down, many people showed care and concern for others. B．It took the speaker much longer than the others to escape from the building because he had an artificial leg. C．The buildin...
【单选题】Although Whitney Houston died of an accidental drowning on February, 11, adequate evidence showed that cocaine was a factor that to her death. [ ]
A.
distributed
B.
substituted
C.
contributed
D.
supplemented
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