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【多选题】
以下单体可以进行自由基、阴离子、阳离子三种聚合的有( )。
A.
丁二烯
B.
异戊二烯
C.
醋酸乙烯酯
D.
苯乙烯
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参考答案:
举一反三
【多选题】中枢性止咳药:直接抑制咳嗽中枢的镇咳药,分成瘾性和非成瘾性,成瘾性止咳药有吗啡、咳必清非成瘾性止咳药有。
A.
吗啡
B.
可待因
C.
咳必清
D.
刻美芬
【简答题】On january 13, 1982, a severe storm hit Washington, D.C. The temperature fell to the mid-s. Driving snow it hard to see. Flights out of Washington's National Airport were delayed snowplows cleared...
【简答题】微型讲座14.pdf Test 14.mp3:
【简答题】成瘾性:
【简答题】何谓成瘾性?吗啡等镇痛药产生成瘾性的机制是什么?
【简答题】阅读理解 A man fell out of his plane and fell back into it again. Two people rowed(划) a small boat from New York to England in 56 days. One person was so big that he wouldn’t fit in any hospital room. Wou...
【简答题】何谓习惯性和成瘾性?哪些药物有成瘾性?
【简答题】阅读理解。 An man fell out of his plane and fell back into it again. Two people rowed (划) a small boat from New York to England in 56 days. One person was so big, he wouldn't fit in any hospital room. Woul...
【简答题】成瘾性(名词解释)
【简答题】成瘾性是指:
参考解析:
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