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【单选题】
我国中、小型电力系统正常运行时,规定允许频率偏差为( )Hz。A.
±0.5
B.
±1.0
C.
±2.0
D.
±3.0
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举一反三
【单选题】Cansumers are not supposed to throw used computers in the trash because ______
A.
they contain large amounts of harmful substances
B.
this is banned by the California government
C.
some parts may be recycled for use elsewhere
D.
unscrupulous dealers will retrieve them for profit
【简答题】变更界址测量包括（）和（）两种测量。在工作程序上可分两步进行，一是界址点、线的检查；二是进行变更测量。
【单选题】在测试程序变更控制流程时，信息系统审计师发现，变更数量过少以至于无法对审计结论提供合理的保证。审计师最合适的行动是？（）
A.
设计一个另外的测试程序
B.
把该缺陷向管理层汇报
C.
对整个变更管理流程进行巡视
D.
生成另外的程序变更样本
【简答题】If the taughened glass needs to meet both the security requirement and the desire of containing the glass if it breaks, then______ is applied.
【单选题】The author thinks that the value of a man can be______.
A.
discovered without physical contact
B.
discovered only through frequent meetings
C.
found in his external appearance
D.
discovered through superficial contacts
【单选题】All of the following statements about the tails of comets are true EXCEPT:
A.
They can contain electricaily charged or neutral particles.
B.
They can be formed only when there is sufficient heat.
C.
They are formed before the coma expands.
D.
They always point in the direction away from the Sun.
【单选题】Sanitary waste matter will .(1)pass through a screen or cutters (2)come into contact with the bacteria in a tank (3)be discharged, normally without bacteria
A.
(1)
B.
(1)(2)
C.
(2)(3)
D.
(1)(2)(3)
【简答题】变更测量的程序?
【单选题】The English language ()a vivid saying to describe this sort of situation.
A.
owns
B.
contains
C.
holds
D.
possesses
【单选题】According to the passage, which one of the following countries has not announced the containment of bird flu?
A.
Pakistan.
B.
Thailand.
C.
Vietnam.
D.
the United States.
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