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【判断题】
普通低碳钢屈服点随温度变化: 温度升高,屈服平台缩短降低,屈服强度降低 温度为400°C时,低碳钢特有的屈服点消失。 温度为500°C时,屈服强度为常温的1/2A.
正确
B.
错误
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【单选题】In designing the Verrazano Bridge, Othmar Ammann ___.
A.
had time account the Curvature of the earth's surface
B.
spent over a year building the platforms that the bridge's base''
C.
had to consider the number of vehicles that might cross the bridge
D.
wished to reduce the size of the bridge as much as possible
【单选题】The Verrazano Bridge was built with so wide a span because__.
A.
it had to cover a wide stretch of water
B.
of the unusual shape of the earth around Brooklyn and Stands Island
C.
the water that lies between Brooklyn and Stands Island
D.
the number of wires in each cable is so great
【单选题】The Verrazano Bridge______ Brooklyn with Staten Island.
A.
attaches
B.
unifies
C.
links
D.
relates
【单选题】The Verrazano Bridge _____ Brooklyn with Staten Island. (l.8)
A.
attaches
B.
unifies
C.
links
D.
relates
【简答题】The Verrazano Bridge, which was by Othmar Ammann, joins Brooklyn to Staten Island. It has a span of 4260 feet. The bridge is so long that the shape of the earth had to be taken into account by its des...
【单选题】The Verrazano Bridge,_______________the design of Othmar Ammann.
A.
is
B.
was
C.
were
D.
has been
【简答题】用loc与ilo方法提取多行多列数据
【单选题】The Verrazano Bridge, _____ the design of Othmar Ammann. (l.8)
A.
is
B.
was
C.
were
D.
has been
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