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举一反三
【简答题】7-28、Link each problem to a _____ which explains it.
【单选题】In a circuit-switched network, if each link has n circuits, for each link used by the end-to-end connection, the connection gets ( ) of the link's bandwidth for the duration of the connection.
A.
a fraction 1/n
B.
all
C.
1/2
D.
n times
【简答题】4×7=28，4和7是28的（ ）。28是4的（ ），也是7的（ ）。
【简答题】The four circles are apart from each other.Link their centers to form. a quadrilateral, then the total are a of the shaded parts in the figure is( ). (A)2π (B)4π (C)6π (D)8π
【单选题】It is reported that two spacecrafts will ________ with each other in orbit. [ ]
A.
link up
B.
line up
C.
pile up
D.
tie up
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