舌青紫湿润，舌体短缩者，属（）
A.气血俱虚
B.痰浊内蕴
C.热盛伤津
D.风痰阻络
E.寒凝筋脉
参考答案：E
The workers are so _____ to the noise of the machine that they don't even notice it during their work. [ ]
A. accustomed
B. subjective
C. familiar
D. associated
作业层的信息系统通常有（）特点。
A.重复性
B.可预见性
C.历史性
D.详细性
E.可比性
