铁路车号自动识别系统地面AEI设备的标签识别准确率应不小于（）｡
A.0.99
B.0.999
C.0.9999
D.1
参考答案：C
-Who's the man __________ black?
-Oh, he's a famous pop singer.[ ]
A. in
B. on
C. with
D. at
万部华严经塔
