选择题:Ever since the invention of television there hasn.

题目内容:
Ever since the invention of television there hasn.t been anything as begging to become a ________ as the Internet

A.means
B.medium
C.materia
D.media
参考答案:

川乌经炮制,其生物碱类成分结构改变,毒性降低,所发生的化学反应是A. 氧化反应B.还原反应C.水解反

川乌经炮制,其生物碱类成分结构改变,毒性降低,所发生的化学反应是A. 氧化反应B.还原反应C.水解反应D.聚合反应E.加成反应

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A.生物碱、B.黄酮、C.香豆素、D.木脂素、E.苷类、F.强心苷、G.二萜、H.三萜、I.甾体皂苷

A.生物碱、B.黄酮、C.香豆素、D.木脂素、E.苷类、F.强心苷、G.二萜、H.三萜、I.甾体皂苷、J.蒽醌、K.糖、L:倍半萜。COOHHOOOHOOOO糖

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