题目内容

No horse has a speed c_________ to that of his. He often r_________ to a dictionary when composing. He was a_________ as England’s greatest modern painter. I can take you to the airport and see you o_________. Susan is my c_________, we were at school together. The p_________ of the characters in the novel is lifelike. Oil will not m_________ with water.

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符合甲型强心苷元结构特征的是( )

A. C/D环顺式稠合
B/C环反式稠合
C. A/B环顺式或反式稠合
D. C17连接五元不饱和内酯环

下列有关强心苷的溶解性正确的说法是( )

A. 强心苷可溶于乙醚
B. 强心苷可溶于乙醇
C. 次生苷亲水性强
D. 苷元亲脂性强

水解强心苷的苷元或糖上的酰基常用的碱有( )

A. 2%NaOH水溶液
B. 5%Ca(OH)2水溶液
C. 5%KOH水溶液
D. 5%NaHCO3水溶液

地高辛不能与下列哪些药同服()

A. 复方罗布麻片
B. 救心丸
C. 通宣理肺丸
D. 化痰止咳丸

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