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【判断题】
项目计算期最后一年的年末称为终结点,假定项目最终报废或清理均发生在终结点(但更新改造除外)从投产日到终结点之间的时间间隔称为建设期,又包括运营期和达产期两个阶段。( )A.
正确
B.
错误
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皮皮学刷刷变学霸
举一反三
【单选题】无线电波有四种,分别是中波、短波、超短波和微波.其中关于微波叙述正确的是( ).
A.
沿地面传播,绕射能力强,适用于广播和海上通信
B.
具有较强的电离层反射能力,适用于环球通信
C.
具有极高频率的电磁波,波长很短,主要是直线传播,也可以从物体上得到反射
D.
和超短波一样饶射能力都很好,但不可作为视距或超视距中继通信
【简答题】Alan worked in an office in the city. He worked very hard and really looked forward to his holiday. He usually went to the seaside, but one year he saw an ad. in a newspaper “Enjoy country life. Spend...
【单选题】He worked very hard, otherwise he _____.
A.
would have failed
B.
will have failed
C.
will fail
D.
would fail
【单选题】Please choose the proper one to describe the picture .
A.
Poached Eggs
B.
Fried Eggs
C.
Boiled Eggs
D.
Tea-flavored Eggs
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