A：3=A
B：M=﹣M
C：B=A=2
D：x+y=0
下列地形区位于北方地区的是（ ）
Smith 夫妇的孩子Alex 已经一个星期没有回家了，他的父母很为他着急。请您为他们写一则寻人启事。
Name
Alex
Age
14
Appearance
Tall, of medium build, short hair,big eyes, a small nose,a big mouth, wear glasses
Clothes
White shirt, blue pants, black shoes
Telephone
602—2615
Have you seen a girl anywhere？
In English, we say that sharing a problem is like cutting it ____.
