在FIDIC施工合同履行中，因业主的行为导致承包商增加施工成本，业主应对承包商补偿(

透明管型

( )是会计核算的基本前提。

A．会计主体

B．持续经营

C．会计分期

D．货币计量

为什么采煤工作面必须设置甲烷传感器？

Although a given waveform may contain frequencies over a very broad range, as a practical matter any transmission system will be able to accommodate only a limited band of （1）. This, in turn, limits the data rate that can be carried on the transmission （2）. A square wave has an infinite number of frequency components and hence an infinite （3）. However, the peak amplitude of the kth frequency component, kf, is only l/k, so most of the （4） in this waveform is in the first few frequency components. In general, any digital waveform will have（5） bandwidth. If we attempt to transmit this waveform as a signal over any medium, the transmission system will limit the bandwidth that can be transmitted.

（3）是（）

A.source

B.bandwidth

C.energy

D.cost

治疗不寐的主穴是（）

A.内关、公孙

B.照海、申脉

C.照海、列缺

D.内关、外关

E.后溪、申脉