![](http://tiku.kgc.cn/testing/cdn/getImage?relativePath=0007000/1543301939751/id_1543301939751.png&imageType=0)
(选择一项)
1
-
A:
-
B:
-
C:
-
D:
(1)public共有访问。该修饰符可用于类和结构的成员,可用于命名空间下直接定义的类型,对于类和结构成员,如果声明为共有的,那么除自身的成员,外部成员也可以访问
(2)pricate限制为私有访问。该修饰符只能用于类和结构的成员,如果成员为加访问限制修饰物,则默认为private
(3)proteted限制问保护访问。该修饰符只能用于类的成员,而对结构的成员以及在命名空间下直接定义的类型无效,如果类的成员被声明为保护的,那么只有其所在的类及派生类中的成员可以访问,无法从类的外部进行访问
(3)internal限制为内部访问。该修饰符可用户类和结构的成员,也可用于命名空间下直接定义的类型。任何一种类型或成员如果声明为内部的,那么它在本程序集内可以被自由访问,队其他程序集来说是隐藏的
![](http://tiku.kgc.cn/testing/cdn/getImage?relativePath=0009000/1543302339788/id_1543302339788.png&imageType=0)
(选择一项)
2
-
A:
-
B:
-
C:
-
D:
bool Equals(string value)比较一个字符串与另一个字符串value的值是否相等。若二者相等,则返回true;若不相等,则返回false。int Compare(string str1,string str2)比较2个字符串大小关系,返回一个整数。string[] Split(char separator)用指定的分隔符separator分割字符串,返回分割后的字符串数组。string ToLower()获得字符串小写形式。因此C选项是正确的
![](http://tiku.kgc.cn/testing/cdn/getImage?relativePath=0032000/1543306325049/id_1543306325049.png&imageType=0)
(选择一项)
3
-
A:
-
B:
-
C:
-
D:
![](http://tiku.kgc.cn/testing/cdn/getImage?relativePath=0007000/1543301934943/id_1543301934943.png&imageType=0)
(选择一项)
9
-
A:
-
B:
-
C:
-
D:
![](http://tiku.kgc.cn/testing/cdn/getImage?relativePath=0026000/1543305170480/id_1543305170480.png&imageType=0)
(选择一项)
11
-
A:
-
B:
-
C:
-
D:
![](http://tiku.kgc.cn/testing/cdn/getImage?relativePath=0009000/1543302323228/id_1543302323228.png&imageType=0)
(选择一项)
12
-
A:
-
B:
-
C:
-
D:
![](http://tiku.kgc.cn/testing/cdn/getImage?relativePath=0009000/1543302273072/id_1543302273072.png&imageType=0)
(选择一项)
13
-
A:
-
B:
-
C:
-
D:
![](http://tiku.kgc.cn/testing/cdn/getImage?relativePath=0027000/1543305420786/id_1543305420786.png&imageType=0)
(选择一项)
14
-
A:
-
B:
-
C:
-
D:
![](http://tiku.kgc.cn/testing/cdn/getImage?relativePath=0032000/1543306352478/id_1543306352478.png&imageType=0)
(选择一项)
16
-
A:
-
B:
-
C:
-
D:
![](http://tiku.kgc.cn/testing/cdn/getImage?relativePath=0007000/1543301937967/id_1543301937967.png&imageType=0)
(选择一项)
17
-
A:
-
B:
-
C:
-
D:
![](http://tiku.kgc.cn/testing/cdn/getImage?relativePath=0007000/1543301882155/id_1543301882155.png&imageType=0)
(选择一项)
18
-
A:
-
B:
-
C:
-
D:
![](http://tiku.kgc.cn/testing/cdn/getImage?relativePath=0032000/1543306343317/id_1543306343317.png&imageType=0)
(选择二项)
21
-
A:
-
B:
-
C:
-
D:
![](http://tiku.kgc.cn/testing/cdn/getImage?relativePath=0004000/1543301152167/id_1543301152167.png&imageType=0)
(选择一项)
23
-
A:
-
B:
-
C:
-
D:
![](http://tiku.kgc.cn/testing/cdn/getImage?relativePath=0009000/1543302319581/id_1543302319581.png&imageType=0)
(选择一项)
26
-
A:
-
B:
-
C:
-
D:
![](http://tiku.kgc.cn/testing/cdn/getImage?relativePath=0025000/1543305119596/id_1543305119596.png&imageType=0)
(选择一项)
27
-
A:
-
B:
-
C:
-
D:
![](http://tiku.kgc.cn/testing/cdn/getImage?relativePath=0004000/1543301161713/id_1543301161713.png&imageType=0)
(选择一项)
30
-
A:
-
B:
-
C:
-
D:
![](http://tiku.kgc.cn/testing/cdn/getImage?relativePath=0027000/1543305422593/id_1543305422593.png&imageType=0)
(选择二项)
32
-
A:
-
B:
-
C:
-
D:
![](http://tiku.kgc.cn/testing/cdn/getImage?relativePath=0032000/1543306294596/id_1543306294596.png&imageType=0)
(选择一项)
36
-
A:
-
B:
-
C:
-
D:
![](http://tiku.kgc.cn/testing/cdn/getImage?relativePath=0027000/1543305407448/id_1543305407448.png&imageType=0)
(选择二项)
38
-
A:
-
B:
-
C:
-
D:
![](http://tiku.kgc.cn/testing/cdn/getImage?relativePath=0026000/1543305184611/id_1543305184611.png&imageType=0)
(选择一项)
40
-
A:
-
B:
-
C:
-
D:
![](http://tiku.kgc.cn/testing/cdn/getImage?relativePath=0013000/1543303136043/id_1543303136043.png&imageType=0)
(选择一项)
42
-
A:
-
B:
-
C:
-
D:
![](http://tiku.kgc.cn/testing/cdn/getImage?relativePath=0004000/1543301169188/id_1543301169188.png&imageType=0)
(选择一项)
46
-
A:
-
B:
-
C:
-
D:
![](http://tiku.kgc.cn/testing/cdn/getImage?relativePath=0032000/1543306297069/id_1543306297069.png&imageType=0)
(选择一项)
47
-
A:
-
B:
-
C:
-
D:
![](http://tiku.kgc.cn/testing/cdn/getImage?relativePath=0027000/1543305406155/id_1543305406155.png&imageType=0)
(选择一项)
48
-
A:
-
B:
-
C:
-
D:
![](http://tiku.kgc.cn/testing/cdn/getImage?relativePath=0004000/1543301159816/id_1543301159816.png&imageType=0)
(选择一项)
49
-
A:
-
B:
-
C:
-
D:
![](http://tiku.kgc.cn/testing/cdn/getImage?relativePath=0009000/1543302352032/id_1543302352032.png&imageType=0)
(选择二项)
50
-
A:
-
B:
-
C:
-
D: