题目内容

discourse marker

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禁毒宣传教育“八进”工作是什么？

聚乙烯醇

A. PVPP
B. CMS-NA
C. MCC
D. PVA
E. PLA

交联聚乙烯吡咯烷酮

A. PVPP
B. CMS-NA
C. MCC
D. PVA
E. PLA

One of properties of the adjacency pairs is that the form. and content of the first part depends on the type of the second part.