渠道植树造林在树种选择上要以适当当地自然条件的速生快长、树干（）和枝叶防风的乔木为主。
参考答案：抗弯
I don't doubt ________the people in Beichuan County will recover from the disaster soon and rebuild their homes better than before.
A．that
B．if
C．what
D．whether
对全部再障都适用的是
A．抗淋巴细胞球蛋白B．泼尼松C．康力龙D．铁剂
