What are the fundamental features of the basic word stock of the English vocabulary
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What are the major characteristics of English antonyms
27岁，G1P0，孕32周，头位，阴道出血3天，量少，无腹痛，胎心正常，无明显宫缩，诊断为前置胎盘。恰当处理是
A. 绝对卧床，给予镇静剂，观察病情变化
B. 立即行人工破膜
C. 立即行催产素(缩宫素)引产，宫口开大后行碎胎术
D. 立即行剖宫产术
E. 立即人工破膜及点滴催产素(缩宫素)
synchronic approach to polysemy
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