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【单选题】
某单位拥有一个C类网段的IP地址。根据网络规划的要求，管理员需要对该C类地址划分子网，并且要求每个子网所能容纳的最大主机数量30。请问，如果想要得到最多的子网数量，子网掩码应为()。A.
255.255.255.0
B.
255.255.255.128
C.
255.255.255.192
D.
255.255.255.224
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【单选题】窗体上有两个文本框Text1、Text2以及一个命令按钮Command1，编写下列程序： Dim y As Integer Private Sub Command1_Click() Dim x As Integer x=2 TextText=p2(p1(x),y) TextText=p1(x) End Sub Private Function p1(x As Integer) As Integer...
A.
2 4 2 4
B.
2 4 4 8
C.
4 4 8 8
D.
10 10 58 58
【单选题】窗体上有两个文本框Text1、Text2以及一个命令按钮Command1，编写下列程序： Dim y As Integer Private Sub Command1_Click() Dim x As Integer x=2 Text1.Text=p2(p1(x),y) Text2.Text=p1(x) End Sub Private Function p1(x As Integer)As Inte...
A.
2 4 2 4
B.
2 4 4 8
C.
4 4 8 8
D.
10 10 58 58
【单选题】Which of the following statements is true?
A.
Every element in Guernica has a clear and accurate reference.
B.
Picasso never cared whether or not other people could understand what he painted.
C.
Picasso's mural Guernica has caused critics' arguments about its political implications.
D.
In Guernica, Picasso painted a Spaniard who looks extremely painful as well as angry.
【单选题】关于感染性尿路结石的特点，下列不正确的是
A.
主要成分是磷酸镁铵和草酸钙
B.
由可产生尿素分解酶的微生物引发
C.
尿液呈碱性
D.
生长快，常呈鹿角型
E.
复发率高
【单选题】It can be inferred from the passage that Guernica was ______.
A.
a city in France
B.
a Spanish city
C.
a town near Paris
D.
a small country in Europe
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