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【单选题】
局域网常用的拓扑结构有星型、总线型和( )A.
星型
B.
不规则型
C.
总线型
D.
环型
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反馈参考答案：
举一反三
【简答题】肺心病肺动脉高压的形成，最重要的原因是（）。
【简答题】读一读，给图片涂上颜色。 a blue desk a green chair a yellow door a white window a red book an orange cat
【简答题】A．For they are not hard-working. B．For they don't have good memories. C．For they haven' t enough thne for it. D．For they are busy with their own language.
【简答题】Going green seems to be a fad(时尚) for a lot of people these days.Whether that is good or bad,we can’t really say, but for the two of us, going green is not a fad but a life style. On April 22,2011,we ...
【单选题】阅读下列代码 import java.io.*; public class Example { public static void main(String[] args) throws Exception { FileInputStream in = new FileInputStream("itcast.txt"); int b = 0; while (true) { b = in._____...
A.
read()
B.
close()
C.
skip()
D.
available()
【单选题】阅读下列代码 import java.io.*; public class Example { public static void main(String[] args) throws Exception { FileInputStream in = new FileInputStream("itcast.txt"); int b = 0; while (true) { b = in._____...
A.
read()
B.
close()
C.
skip()
D.
available()
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