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【单选题】
颈部的深静脉是A.
颈内静脉
B.
面静脉
C.
颈外静脉
D.
颈前静脉
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举一反三
【单选题】Which of the following is an accurate description of "Moore's Law"?
A.
The cost of microprocessor chips is halved about every eighteen months.
B.
The amount of data that can be transmitted over an optical fiber cable doubles about every nine months.
C.
The number of transistors fitting on a chip doubles about every two years.
D.
The cost of a semiconductor fabrication plant doubles about every four years.
【单选题】Which of the following statements is true of Moore's Law?
A.
It is based on the technological advancements in weapon manufacturing.
B.
It made the cost of data processing, communications, and storage essentially zero.
C.
It states that the total number of transistors produced in the world doubles every 18 months
D.
It has resulted in obsoleting the use of transistors.
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