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邻苯二甲酸醋酸纤维素的英文缩写

A. L-HPC
B. CMC-NA
C. HPMC
D. EC
E. CAP

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羧甲基纤维素钠的英文缩写

A. L-HPC
B. CMC-NA
C. HPMC
D. EC
E. CAP

阿片类毒品属于精神药品。()

It is claimed in sociolinguistics that you are what you say. How would you comment on this

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