单选题多数传染病的病程发展具有阶段性，从病原体侵入人体至开始出现临床表现的时期称为（）A恢复期B前驱期C症状明显期D潜伏期E迁延期
单选题
多数传染病的病程发展具有阶段性，从病原体侵入人体至开始出现临床表现的时期称为（）
A
恢复期
B
前驱期
C
症状明显期
D
潜伏期
E
迁延期
参考解析
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