工程治沙技术主要方法包括:()、()、()和()。
参考答案:机械沙障固沙;化学固沙;水力治沙;风力治沙
有关胫神经的检查哪一项是正确的()。
A.足背伸运动
B.姆趾背伸运动
C.前足着地抬足跟
D.足跟着地蹲起运动
E.足内翻运动
_______ she was standing and waiting for a bus that she caught sight of the former President Clinton.
A.It was while
B.As soon as
C.While
D.During the time when