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【单选题】
大部分交感神经节后纤维释放的是A.
乙酰胆碱
B.
去甲肾上腺素
C.
多巴胺
D.
谷氨酸
E.
肾上腺素
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反馈参考答案：
举一反三
【多选题】淀粉是由 [填空(1)] 聚合而成的多糖，均由α-1，4苷键联结而成的为 [填空(2)] 淀粉，除α-1，4苷键外，还有-1，6苷键联结的为 [填空(3)] 淀粉。其中较易糊化的为 [填空(4)] 淀粉。
A.
D-葡萄糖
B.
直链淀粉
C.
支链淀粉
D.
支链淀粉
【单选题】I went to Professor Jayne, who listened to my arguments but remained unmoved. I decided to try harder, although I didn' t know what that meant because school had always been easy for me. I read the b...
A.
quarreled
B.
reasoned
C.
bargained
D.
chatted
【简答题】淀粉是由____聚合而成的多糖,均由α-1,4糖苷键联结而成的为____淀粉,除α-1,4苷键外,还有-1,6苷键联结的为____淀粉。其中较易糊化的为____淀粉。
【简答题】Twenty-two-year-old Timothy Doner from New York City has been able to speak 23 different languages, including some rare African ones. Timothy began his foreign language education at the age of 13. Att...
【简答题】淀粉是由___聚合而成的多糖,均由α-1,4苷键联结而成的为___淀粉除 α-1,4苷键外,还有 贝塔-1,6苷键联结的为___淀粉。其中较易糊化的为___淀粉。
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