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【单选题】
下列哪个不是为克服卡托普利的缺点，对其进行结构改造的方法A.
用α－羧基苯丙胺代替巯基
B.
用含次膦酸基的苯代替巯基
C.
将上述的羧基或次膦酸基成酯
D.
将脯氨酸的吡咯环变成带有L－型氨基酸结构特征的杂环或双环，再酯化侧链的羧基
E.
在苯核的4位以磺酰胺基或甲磺酰基取代
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【单选题】Sending E-mails to Professors One student skipped class and then sent the professor an e-mail（51）for copies of her teaching notes. Another（52）that she was late for a Monday class because she was recov...
A.
providing
B.
offering
C.
supplying
D.
asking
【简答题】根据微生物的结构和组成,微生物分为____、____、____三大类型。
【简答题】阅读理解。 Imagine a world 400 years ago where children were used as chimney sweeps. The pay was low, it was a dirty trade and there was little reward for the men who did the job and even less for children...
【简答题】根据微生物的结构和化学组成差异,微生物可分为 非细胞型微生物 、 真核细胞型微生物 、( )
【单选题】Sending E-mails to Professors One student skipped class and then sent the professor an E-mail【51】for copies of her teaching notes. Another【52】that she was late for a Monday class because she was recov...
A.
providing
B.
offering
C.
supplying
D.
asking
【简答题】根据微生物的结构、组成不同,将微生物分为三类,分别是______微生物、____微生物和_____微生物
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