單項(xiàng)選擇題2歲患兒,高熱,體溫39~40℃,頻咳,喘憋5天住院。查體:精神弱,面色蒼灰,口周青,呼吸60次/分,左肺呼吸音低,叩診濁音,少許細(xì)濕啰音。血常規(guī):白細(xì)胞8.8×10/L,N44%,異形淋巴細(xì)胞1%,L45%。X線胸片示左下肺大片狀陰影。其胸水特點(diǎn)是()

A.淡黃色,細(xì)胞數(shù)<5000/mm3,N55%
B.紅色,可見(jiàn)大量紅細(xì)胞
C.黃稠,細(xì)胞數(shù)>5000,/mm3,N>70%
D.淡黃色,細(xì)胞數(shù)<5000/mm3,N<70%,結(jié)核菌培養(yǎng)(+)
E.乳糜樣液體