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【单选题】
Who does the author criticize in this reading?A.
citizen journalists
B.
people who use surveillance cameras
C.
some members of today’s media
D.
people who alter photos
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【单选题】关于NSString类型的描述中,哪一项是错误的?
A.
NSString 是Objective-C中的类
B.
NSString 类型的常量，必须用双引号引起来，并加@字符，如：@”hello”
C.
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D.
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【单选题】______ over 100 years since the invention of the square-bottomed paper bag.
A.
Now is
B.
Now it has
C.
There is now
D.
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