The maximum data rate of any single wireless link can be described by the shannon’s theorem which is related to the（）in hertz，and the（）on the channel

A．signal frequency

B．bandwidth

C．carrier frequency

D．noise frequency

A．signal

B．caeeier

C．noise

D．data signal

[单选题] The maximum number of data that can be expressed by 8 bits is （72） .（72）A. 64 B. 128 C. 255 D. 256

[单选题]The maximum number of data that can be expressed by 8 bits is(72).(72)A．64B．128C．255D．256

[单选题]The maximum number of data that Can be expressed by 8 bits iS(72).A．64B．128C．255D．256

[单选题]For a continuous random variable X, the probability of any single value of

[名词解释] DDR RAM（Double Data Rate）

[单选题]The following data are for a basket of three consumption goods used to meas

[单选题]The following data are for a basket of three consumption goods used to meas

[名词解释] 线框（Wire frame）

[单选题]Measure （） by means of lead wire.A . the clearance of the main bearingB . the play of the miler bearingC . the gap of the main bearingD . the tolerance of the main bearing

[单选题]Adjust （） by means of lead wire.A . the clearance of the main bearingB . the diameter of main bearingC . the gap of main beatingD . the tolerance of main bearing