單項(xiàng)選擇題

測血壓時(shí)發(fā)現(xiàn)血壓聽不清或有異常,需重新測量。重測時(shí)需間隔多長時(shí)間:()

A.30~50s
B.1~2min
C.3~4min
D.4~5min
E.5~6min

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