已知a+b=4,x+y=10,则a2+2ab+b2﹣x﹣y的值是( )
A:6
B:14
C:-6
D:4
The world is not always ______ we wish it to be.
组词
信____ 沿____ 抬____ 际____
蛙____ 错____ 答____ 还____