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【简答题】
生态系统的结构包括形态结构和 。
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举一反三
【单选题】听力原文：W：I should tell them they shouldn't waste money on such meaningless matter． M：They never listen to anyone, and whatever I say to them goes in one ear and out the other, so save your breath. Q：Wha...
A.
Hold her breath.
B.
Not to be annoyed.
C.
Not saying anything.
D.
Make further suggestions.
【简答题】IPv4地址由( )位二进数组成,8位一组共4组,通常采用( )表示。 IPv6由( )位二进制数组成,16位一组共8组,通常采用冒号分十六进制数表示。
【简答题】阅读理解。 Here is some advice to help you develop confidence(信心) and make friends at school: ●Take a deep breath. You shouldn't be so nervous. Remember that in your new school you will find kids at your a...
【简答题】IPv4 地址由 位二进制数组成,分成 段, 每段用____________隔开。它在___________层使用。
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