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【单选题】
计算机系统的“主机”由( )构成。A.
CPU和内存储器及辅助存储器
B.
CPU和内存储器
C.
存放在主机箱内部的全部器件
D.
计算机的主板上的全部器件
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皮皮学刷刷变学霸
举一反三
【单选题】In the circular-flow diagram,
A.
income from factors of production flows from firms to households.
B.
goods and services flow from households to firms.
C.
factors of production flow from firms to households.
D.
spending on goods and services flow from firms to households.
【单选题】You’d better change another book, because ______ page of the book is torn, and ______ cover looks very old. K_S_5_U
A.
a; the
B.
the; a
C.
the; the
D.
a; a
【单选题】Put the book ______ it should be when you’ve finished reading it.
A.
how
B.
which
C.
where
D.
who
【单选题】使用RIP协议的自治系统中,如果路由器R1的路由表本来不包含到net1的路由信息,收到相邻路由器R2送过来的距离矢量中包含 ,则R1达到net1的跳数为( )
A.
9
B.
10
C.
11
D.
12
【简答题】Consider incompressible flow in the entrance of a circular tube, as in Fig. 6-39. The inlet flow is uniform, u 1 =U o . The flow at section 2 is developed pipe flow. Find the wall drag force F as a fu...
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