桂枝汤原方服法要求服已须臾,啜热稀粥一升余,其意义在于()。
A.护中以防伤胃
B.助汗以祛外邪
C.防止过汗伤阴
D.防止过汗伤阳
E.既防亡阳又防亡阴
参考答案:B
A mobile phone is never allowed into the classroom during the school time, ______?[ ]
A. hasn't it
B. has it
C. is it
D. isn't it
磁盘请求服务队列所要访问的磁道分别是118、203、57、142、34、144、85、87。当前磁头位置为第73道上,若按最短寻道时间优先算法法,磁头移动的道数是( )。
A.235
B.236
C.237
D.238