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【单选题】
某孕妇,27岁,生产一脊柱裂畸形儿,可能与哪种营养素缺乏有关A.
维生素A
B.
维生素B
C.
叶酸
D.
烟酸
E.
维生素B2
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【单选题】Passage Four There was once a man who spent all his time in his glasshouse. Flowers was his name, and flowers were his main joy in life. He grew flowers of every color under the sun. He grew these flo...
A.
to grow beautiful flowers
B.
to grow the Rose of the Year and win a prize
C.
to grow all kinds of flowers in the world
D.
to take part in the competition
【简答题】什么叫化生 , 临床上常见哪些化生 ?
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【单选题】While he was in Beijing, he spent all his time __________ some important museums and buildings.
A.
visiting
B.
traveling
C.
watching
D.
touring
【简答题】什么叫化生?临床上常见哪些化生?
【简答题】琥珀胆碱过量中毒时，可否选用新斯的明解救( )，其原因是( )。
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