下载APP
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】In the wake of 11 September, Visionics, a leading manufacturer, issued a fact sheet explaining how its technology could enhance airport security. They called it "protecting civilization from the faces...
A.
any way, the face-recognition technology is good enough to frighten the terrorists
B.
the industry will have to recognize the real situation and work hard to improve the technology
C.
all the claims are premature
D.
we must not expect too much
【多选题】当普铁接触网电缆直埋敷设时，电缆表面距地面不应小于“ ”m，穿越农田时不应小于“ ”m。（ ）
A.
0.7
B.
1
C.
1.2
D.
1.5
E.
0.5
F.
0.3