慢性进行性眼外肌瘫痪无需与下列哪种疾病鉴别()
A.重症肌无力
B.眼咽型肌营养不良
C.MillerFishersyndrome
D.多发性肌炎
E.眼肌型肌营养不良
参考答案:D
Everyone ________have at least eight ______ sleep at night.
A.need, hour’s
B.need to, hours’
C.needs to, hours’
D.needs, hours’
煮炉时氢氧化钠的作用是什么?