(本题6分)某企业欲购置一台大型机器,购置后每年可以增加收益1000元,若该机器可使

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问题:

(本题6分)某企业欲购置一台大型机器,购置后每年可以增加收益1000元,若该机器可使用10年,期末残值为零,预期年利率i=10%。问:该机器的最高投资限额是多少元如该机器当前售价为7000元,是否值得购买(计算结果保留小数点后两位)

考点:自学考试高等教育自学考试高等教育自学考试工程经济真题2011年1月
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在等腰Rt△ABC中,在斜边AB上任取一点M,则AM的长小于AC的长的概率为______.

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测定气孔率的工艺实验中,测定的气孔率是()

A、真气孔率

B、显气孔率

C、闭口气孔率

题型:问答题

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.

(67)处填()。

A.text

B.image

C.page

D.graphic

题型:问答题

2013年,政府各级财政继续加大对民生领域的投资,将城乡低保标准分别提高13.1%和17.7%,将企业退休人员基本养老金水平提高(),将城乡居民基本医保财政补助标准增加到人均280元。

A.5%

B.10%

C.15%

D.20%

题型:问答题

急性化脓性骨髓炎发病后3~5天,X线照片上可见到骨质改变。

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