题目内容

克罗恩病腹痛的规律

A. 进食后疼痛缓解
B. 进食后疼痛加重
C. 痉挛性疼痛,肠鸣音增加,排便后缓解
D. 疼痛-便意-便后缓解
E. 疼痛固定于左下腹

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数据库技术的研究领域,概括地讲,可以包括数据库管理系统软件的研制、数据库理论和______。

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国债登记结算公司、证券登记结算公司上海、深圳分公司于规定的债权登记日,对当期国债进行总债权登记和分账户债权托管。()

A. 对
B. 错

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