建设防风林带时应考虑哪些因素？
参考答案：
1、防风林带结构
2、防风林带的高度
3、防风林带的宽度
4、与风向的交角
计算﹣32所得的正确结果是 [ ]
A．9
B．﹣6
C．﹣9
D．6
The situation at Omaha Beach was so bad _______ the soldiers succeeded in landing on the beach with a lot of people losing their lives.
A．that
B．enough
C．once
D．when
