单选题
If x is an even integer and y is an odd integer, then which of the following is an even integer?
(A) x
2
+y (B) x
2
-y
(C) (x
2
)(y) (D) x+y
(E) x-y
A
B
C
D
E
【正确答案】
C
【答案解析】
提交答案
关闭