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【单选题】
计算机网络按其拓扑结构可分为_______。A.
局域网、广域网和城域网
B.
星型、环型、总线型、和网状型
C.
公用网和专用网
D.
对等网和基于服务器的网络
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举一反三
【简答题】When the cat is away, the mice will play.
【单选题】(2007.29)—Look at the noisy kids!—Haven’t you heard the saying “When the cat is away, the mice _________?”
A.
play
B.
played
C.
are playing
D.
will play
【单选题】-Look at the noisy kids! -Haven't you heard the saying, “When the cat is away, the mice_______.”
A.
play
B.
played
C.
are play
D.
will play
【简答题】When the cat is away, the mice will play.
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