更多"In an FM radio, the Intermediate Fr"的相关试题:
[单项选择]
Because noises modulate radio frequency, radio stations use a band of frequencies to prevent interference with other stations.（）
A. govern
B. adapt
C. temper
D. renovate
[单项选择]Which feature makes FM radio relatively noise free
A. Its radio frequency is varied.
B. It is static free.
C. It has "preamplifier control" section.
D. It has a detector circuit.
[多项选择]RFID的英文全称是Radio Frequency Identification，即射频识别。以下哪些也代表RFID名称？（）
A. 条码
B. IC卡
C. 电子标签
D. 非接触卡
[单项选择]Why are the arrangements for a church wedding usually made some time before
[单项选择]Preceding the commotion of a battle, there is usually an unusual ______ .
A. changeability
B. likeability
C. desirability
D. tranquility
[多项选择] Intermediate system to intermediate system (IS - IS), is a protocol used by network devices (routers) to determine the best way to forward datagrams through a packet - switched network, a process called routing. Which three attributes are of the IS - IS routing protocol? （）
A. supports VLSM
B. link - state routing protocol
C. operati on is similar to BGP
D. supports two routing levels within an autonomous system
[单项选择]FREQUENCY:
A. (A) perseverance
B. (B) accord
C. (C) steadiness
D. (D) restraint
E. (E) uncommonness
[单项选择]An Intermediate System experiencing memory problems indicates that it may have incomplete data by setting which bit in its LSP?（）
A. more bit
B. partition bit
C. attached bit
D. overload bit
[单项选择]The intermediate product needed for the production of aluminum is______.
A. hydrated oxides
B. bauxite
C. alumina
D. silicates
[单项选择]Cox Radio, one of the nation's largest radio chains, plans to ______ its ties with independent record promoters to distance itself from a payola-like practice that runs rampant in the music business.
A. consolidate
B. tout
C. sever
D. splash
[简答题]What is nominal central frequency?
[单项选择]In a frequency distribution histogram, the frequency of an interval is given by the:（）
A. width of the corresponding bar.
B. height multiplied by the width of the corresponding bar.
C. height of the corresponding bar.
[判断题]Pitch is produced by frequency of vibration of the vocal cords. The higher the frequency, the higher the pitch.（）
[单项选择]______ popularity of subject matter and frequency of use, the books on the two middle shelves will be the most helpful to you.
A. As of
B. As regards
C. As from
D. As against
[单项选择]What is the OSPF default frequency,in seconds,at which a cisco router sends hello packets on a multi-access network?（）
A. 10
B. 40
C. 30
D. 20
