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问题 问答题 简答题

开关拒绝跳闸如何处理？

答案

参考答案：（1）保险熔断应更换。（2）操作电压过低应检查调整。（3）其它原因引起拒跳，运行中不能处理者应采取措施，改变运行方式，汇报有关领导，联系检修处理。

多项选择题

根据现行有关规定，关于ETF交易，下列说法正确的有( )。

A．投资者可以通过申购赎回或买卖交易两种方式参与ETF的投资

B．投资者需用组合证券进行申购、赎回ETF份额

C．投资者的申购、赎回ETF份额的申报指令可以撤销

D．当日申购的基金份额，同日可以卖出和赎回
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单项选择题

A project management technique that is currently in widespread use is the (27) . The purpose of this technique is to detail, in hierarchical fashion, all of the activities that are required to meet project objectives. There are some special activities called (28) , which are events that signify the accomplishment or completion of major deliverables during the project. Most system development methodologies also provide (29) , whose purpose is to contain the various pieces of relevant information - feasibility assessments, schedules, needs analysis, and so forth - in a single place so that they can be presented to project clients and other related parties. Several types of important network diagrams are used in project management. (30) was developed to make clear the interdependence between project tasks before those tasks are scheduled. (31) offers the advantage of dearly showing overlapping tasks.

31（）

A. CPM

B. Network Diagram

C. PERT

D. Gantt chart
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