单项选择题
A.飞沫传播疾病隔离B.空气传播疾病隔离C.血液体液传播疾病隔离D.接触传播疾病隔离
A.压榨样疼痛B.刺痛C.撕裂样疼痛D.隐痛
A.1~2cmB.3~4cmC.4~6cmD.至少5cm
A.30sB.45sC.60sD.120s
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