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问题 单项选择题

在倾斜井巷中，升降物料的绞车使用的钢丝绳的直径为21.5mm，当使用带接头的钢丝绳时其接头插接长度为（）。

A.2.15m

B.4.3m

C.21.5m

D.43m

答案

参考答案：C

单项选择题

DOM is a platform and language- (51) 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 (52) . DOM is a (53) -based API to documents, which requires the whole document to be represented in (54) while processing it. A simpler alternative to DOM is the event-based SAX, which can be used to process very large (55) documents that do not fit info the memory available for processing.

A．document

B．processor

C．disc

D．memory
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单项选择题

晁错在《论贵粟疏》中讲到：“夫珠玉金银，饥不可食，寒不可衣”，但人们还是喜欢金银。这表明金银作为货币（）

A.从起源看，是和商品同时产生的

B.从作用看，是财富的唯一象征

C.从本质看，是固定充当一般等价物的商品

D.从职能看，具有价值尺度、贮藏手段两种基本职能
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