大麦中主要的化学成分是()。
A.纤维素
B.蛋白质
C.淀粉
D.半纤维素和麦胶物质
参考答案:C
"Mike is _____, Mum," said his little sister. " That is not my fault, noticed some broken toys ____ on the floor, so I picked them up and _____ them on the chair. [ ]
A. lying; lay; lay
B. lying; lie; lay
C. lying; lain; laid
D. lying; lying; laid
患者女,65岁,诉双眼干涩不适2年来诊。眼部检查:Vod0.9,Vosl.0,双眼结膜充血(+),BUT右眼3秒,左眼2秒。Schirmer试验双眼2mm。角膜上皮弥漫性荧光素染色,眼内未见其他异常。追问病史,患者有反复鼻出血、口唇皲裂、皮肤干燥、关节疼痛症状。该患者可初步诊断为()
A.干眼症
B.合征
C.类风湿关节炎
D.皮肌炎
E.Stevens-Johnson综合征