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【单选题】
将斜拉索表面做成带凸纹或凹纹的非光滑表面,属于拉索减振的( )。
A.
改变动力特性法
B.
阻尼减振法
C.
气动控制法
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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
【单选题】Passage 4 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 civ...
A.
Too many false alarms were raised.
B.
Everyone should look straight at the camera.
C.
Only 90% of suspects at an airport were found.
D.
Everyone should not disguise himself.
【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
相关题目：
【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
【单选题】Passage 4 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 civ...
A.
Too many false alarms were raised.
B.
Everyone should look straight at the camera.
C.
Only 90% of suspects at an airport were found.
D.
Everyone should not disguise himself.
【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
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