下列哪项为最轻程度的意识障碍（）.
A.嗜睡
B.意识模糊
C.昏迷
D.昏睡
参考答案：A
You can come at any time this afternoon. I'll wait for you ______ 6 o'clock. [ ]
A. until
B. at
C. after
D. from
3G手机用户如何查询M/T使用情况？
