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【单选题】
圆管层流过流断面的流速分布为 。A.
均匀分布
B.
对数曲线分布
C.
二次抛物线分布
D.
直线分布规律
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皮皮学刷刷变学霸
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【单选题】茯苓个的于燥方法为( )
A.
晒至六七成干,除去附着物及杂质,再晒干或低温干燥
B.
阴干或40~50℃烘干
C.
阴干
D.
晒干
E.
反复“发汗”至表面现皱纹,内部水分大部散失后,阴干
【单选题】Predicting the future is always risky. But it's probably safe to say that at least a few historians will one day speak of the 20th century as America's 'Disney era'. Today, it's certainly difficult to...
A.
painting.
B.
creativity.
C.
management.
D.
merchandising.
【简答题】【处方】 熟地黄1408g 酒萸肉704g
牡丹皮528g 山药704g
茯苓528g 泽泻528g 【制法】以上六味,取茯苓110g粉碎成细粉,筛余部分与剩余茯苓加水煎煮三次,每次30分钟,滤过,滤液合并,浓缩至稠膏状;酒萸肉加乙醇回流提取二次,每次1小时,滤过,药渣备用,滤液合并,回收乙醇,浓缩至稠膏状。牡丹皮用水蒸气蒸馏,并在收集的蒸馏液中加1mol/L盐酸溶液使结晶...
【简答题】茯苓个的干燥方法为( )A.晒至六七成干,除去附着物及杂质,再晒干或低温干燥B.反复“发汗”至表面现皱纹,内部水分大部分散失后,阴干C.阴干D.晒干A. 1 B. 1 C. 1 D. 1
【简答题】B When I was about 4 years old , I decided to go to Disney World. For most young kids , it's a normal request , but I had cerebral palsy( 脑瘫 ).Walking into anywhere , let alone a crowded place like Di...
【单选题】TEXT B Predicting the future is always risky. But it's probably safe to say that at least a few historians will one day speak of the 20th century as America's “ Disney era ” . Today, it's certainly di...
A.
painting.
B.
creativity
C.
management.
D.
merchandising.
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