某胃癌筛检试验的测定结果，见表1。
试验的灵敏度为（）
A.25%
B.50%
C.60%
D.70%
E.80%
参考答案：C
— the film Harry Potter?
—It is exciting. [ ]
A. How do you know
B. What do you think of
C. Which do you like
D. What do you like
8088/8086系统中“段”的最大物理长度为（）字节。
A.8K
B.16K
C.32K
D.64K
