出版物发行工作具有组织出版物商品流通的职能，它在处理供求关系、实行经济核算和经营管理

一千多年前，中国就发明了（    ），至今仍在使用。

I had wanted to take the career of being a model, but I ________ not good at dealing with constant media attention.

A．had been

B．has been

C．am

D．was

表明钢材在超过屈服点工作时可靠性的指标是( )。

A．比强度
B．屈强比
C．屈服强度
D．条件屈服强度

DOM is a platform- and language- (66) 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 (67) . DOM is a (68) -based API to documents, which requires the whole document to be represented in (69) while processing it. A simpler alternative to DOM is the event-based SAX, which can be used to process very large (70) documents that do not fit into the memory available for processing.

A．document

B．processor

C．disc

D．memory