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【单选题】
关于脐带，以下哪项不正确A.
脐带表面由羊膜覆盖
B.
脐带中的华通胶有保护脐带血管的作用
C.
脐带是母儿进行物质交换的重要通道
D.
脐带螺旋状迂曲是胎儿在宫内转动所致
E.
脐带受压致血流阻断可致胎儿窘迫，甚至危及胎儿性命
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举一反三
【单选题】What will be talked about in the text according to the title “College just isn’t special any more”?
A.
College was special in the past while it is not special now.
B.
College is special now while it was not special in the past .
【简答题】养阴药中能滋阴潜阳的药物是____，____。
【简答题】While I lived in Ireland, part of my college course was to work in the area of children with special needs. I was selected to ____ in a school with children with ____. I had numerous rooms to ____ fro...
【单选题】一贯煎滋阴疏肝，主治肝肾阴虚，肝气不舒。方中多用滋阴养血，益胃生津的养阴药物，仅配伍一味苦寒药以疏泄肝气，它是( )
A.
黄连
B.
牡丹皮
C.
川楝子
D.
黄柏
E.
黄芩
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