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题目内容
（信阳师范学院英语汉语学）
6
[填空题,17分] A __________ is a structurally independent unit that usually comprises a number of words to form a complete statement, question or command.
[填空题,17分] A __________ is a structurally independent unit that usually comprises a number of words to form a complete statement, question or command.
参考答案
