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问题 单项选择题

管理层次较多而管理幅度较小的锥型组织结构的优点是（）

A.缩短上下级距离，密切上下级关系

B.信息纵向流通快，管理费用低

C.管理严密、分工明确、上下级易于协调

D.被管理者有较大的自主性，积极性和满足感

答案

参考答案：C

单项选择题

已知通径为50mm的涡轮流量变送器，其涡轮上有六片叶片．流量测量范围为5～70m3/h，校验单上的仪表常数是35次/L则在最大流量时，该仪表内涡轮的转速是( )r/s。

A．68.56

B．680.56

C．58.2

D．6805.6
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单项选择题

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.

A．table

B．tree

C．control

D．event
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