公路桥规规定,梁式桥主梁最大挠度限值为L/600。下列关于挠度值的检算要求,说法正确的是( )
A. 外荷载的作用频遇组合引起的短期挠度,小于规范限值
B. 外荷载的作用准永久组合引起的长期挠度,小于规范限值
C. 可变荷载(汽车荷载不计冲击力)频遇组合引起的长期挠度,满足规范限值
D. 可变荷载(汽车荷载不计冲击力)频遇组合引起的短期挠度,满足规范限值
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Please choose the German series.
A. Volkswagon
B. Audi
C. BMW
D. KIA
Please choose the French series.
A. Porsche
B. Mercedes-Benz
C. Bugatti
D. Renault
Please choose the British series.
A. Buick
Bentley
C. Rolls-Royce
D. Ford
Please choose the Italian series.
A. Ferrari
B. Lamborghini
C. FIAT
D. Maserati