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女性，48岁。十二指肠溃疡病史6年，近3天出现上腹痛，呕血，量约10ml。既往无肝病病史。

该病最常见的病因不包括（）。

A.幽门螺杆菌感染

B.非甾体抗炎药的应用

C.吸烟

D.胃十二指肠运动异常

E.自身免疫性因素

答案

参考答案：E

单项选择题

固定总价合同中，承包商承担的价格风险是（）。

A.工程计量错误

B.工程范围不确定

C.漏报项目

D.工程变更
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单项选择题

DOM is a platform-and language- (1) API that allows programs and scripts to dynamically access and update the content, structure and style of WWW documents (currently, definitions for HTML and XML documents are part of the specification). The document can be further processed and the results of that processing can be incorporated back into the presented (2) DOM is a (3) -based API to documents, which requires the whole document to be represented in (4) while processing it. A simpler alternative to DOM is the event-based SAX, which can be used to process very large (5) documents that do not fit into the memory available for processing.

(2)

A．text

B．image

C．page

D．graphic
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