单项选择题

In C language,a（）is a series of characters enclosed in double quotes。

A.matrix
B.string
C.program
D.stream

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单项选择题

Integration （） is the process of verifying that the components of a system work together as described in the program design and system design specifications.

A.trying
B.checking
C.testing
D.coding

单项选择题

Every valid character in a computer that uses even ( ) must always have an even number of 1 bits.（）

A.parity
B.check
C.test
D.compare

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