Let x*= 3, if x is and odd integer; let x*= 6, if x is an even in

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Let x*= 3, if x is and odd integer; let x*= 6, if x is an even integer. r and s are integers, 3r is odd, and 5+s is odd.

Quantity A

r*

Quantity B

s*

A、Quantity A is greater.
B、Quantity B is greater.
C、The two quantities are equal.
D、The relationship cannot be determined from the information given.

答案：B

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