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【单选题】
发生抢劫.抢夺案件的特点是____A.
地点隐蔽，时间不规律
B.
地点隐蔽，时间有规律
C.
抢劫案件就是暴力抢劫，没有其他后果
D.
自己搏斗，可以阻止抢劫.抢夺案件
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【单选题】线路传输速率为9600bit/s,供8个用户使用,在统计时分复用方式下,每个用户的最高速率可以达到()。
A.
l200bit/s
B.
2400bit/s
C.
4800bit/s
D.
9600bit/s
【单选题】These are specialized graphics programs for editing or modifying digital photographs.
A.
Image editors
B.
Desktop publishing
C.
Presentation graphics
D.
Illustrations
【简答题】Addison Heard uses an image of his wife and infant son for the background on his laptop. An MBA student at the University of Virginia's Darden School of Business, Heard thinks about his family constan...
【单选题】线路传输速率为9600bit/s,供8个用户使用,在统计时分复用方式下,每个用户的最高速率可以达到( )。
A.
1200 bit/s
B.
2400 bit/s
C.
4800 bit/s
D.
9600 bit/s
【简答题】（）是时序逻辑电路的具体应用，用来累计并寄存输入脉冲个数，计数器的基本组成单元是各类（）。
【单选题】Try to get to know the function of each part. The lens is ___
A.
is equivalent to an ideal film plane. Distance from the mirror to the focusing screen is equal to the distance from the mirror to the film plane.
B.
the reflective device for the digital single lens camera. It is used to correct the reverse pictures on the focusing screen, so that operator can frame and focus correctly.
C.
in the front of a camera to allow in light and to focus the image onto a viewing surface.
【单选题】Canesta Company has developed a virtual keyboard out of light to be used with cell phones and personal digital assistants (PDAs). The product beams an image of a keyboard on a desk, allowing the user ...
A.
a. factors of production
B.
b. customer characteristics
C.
c. product factors
D.
d. market factors
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