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参考答案:D
流行性乙型脑炎传染过程中最常见的表现是()
A.显性感染
B.隐性感染
C.病原体被消灭或排出体外
D.潜在性感染
E.病原携带状态
If the odds against an event occurring are twelve to one, what is the probability that it will occur()
A. 0.0769.
B. 0.0833.
C. 0.9167.