A constituent structure rule is one that governs selecting from the lexicon a lexical
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A morphological rule is a rule that introduces the morph or allomorphs that match the
Surface structure refers to the abstract syntactic representation of a sentence .()
Idiolect refers to the unique linguistic system of an individual speaker.()
胃肠道切开前，用纱布垫进行保护的目的是
A. 防止手术野污染
B. 防止周围组织器官误伤
C. 防止肠管干燥及术后黏连
D. 防止胃肠内容物污染腹腔
E. 便于压迫止血
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