[填空题]
{{B}} A =Bernhard Hoff, North Brunswick, New Jersey, USA
B = Mike Bent, Oviedo, Spain
C = Keith Manton, Houston, USA
D = Tim Richards, Whaley Bridge, Derbyshire
Who say (says) that{{/B}}

{{B}} A
Bernhard Hot, North Brunswick, New Jersey, USA{{/B}}
I am afraid that speed limit reductions of that sort are doomed to fail, even if implemented. We tried that here in the States. The national speed limit was reduced from 60 mph to 55 in the 1970s to conserve oil. Someone noticed that highway fatalities also went down. So when oil became cheap and plentiful again (relatively speaking), some busy bodies decided to keep the lower speed limit. "55 Saves Lives" was the slogan they used to sell the idea.
Only problem was that both cars and roads were engineered to be safe to operate at much higher speeds. No one liked the lower speed limits, it was unevenly enforc

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