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单选题 Digital transmission does not need to have _________ S/N ratio (信噪比) as analog (模拟) transmission
学科：专业英语
时间：2023-11-01 07:24:19
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题目1单选题
By varying VBE only a few __________ of volt, the base current (基极电流) can be changed significantlyA. hundredB. hundredsC. hundredthD. hundredths
题目2单选题
Digital transmission does not need to have _________ S/N ratio (信噪比) as analog (模拟) transmissionA. as highB. higherC. highestD. as a high
题目3单选题
The standard meter is accurate to about two parts ____________A. billionB. in billionC. in one billionD. per a billion
题目4单选题
This heater consumes _______________ that one doesA. electric power twice as great asB. greater twice electric powerC. twice as great electric power asD. twice as great electric power
题目5单选题
The demand for this kind of equipment in the near future will be 20 times ___________A. which is in the pastB. the amountC. that of othersD. what it is
题目6单选题
Brass expands _________ more than zinc when heatedA. veryB. considerablyC. superD. lots
题目7单选题
The _________ the color, the ________ light is reflected and the more light is absorbedA. darker;moreB. darkest;moreC. darker;lessD. darkest;less
题目8单选题
Inductance (电感) measurements are _________ accurate of the three types of impedance parameters (阻抗参数)A. lessB. the leastC. littleD. fewest
题目9单选题
This machine does not work ____________ that oneA. so well asB. so best thanC. as better asD. as better than
题目10单选题
This project is ____________ than that one isA. much valuableB. far valuablerC. much more valuableD. slightly valuable
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