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【单选题】
关于钢筋的取样方法,下列表述中,正确的是( )。A.
拉神、弯由试样,可在科成的任选两根钢筋端头400mm处截取
B.
拉伸试样直径R6.5- 20mm长度为100mm~ 200mm
C.
取样在监理工程师见证下取2组,1组送样,1组保存
D.
弯曲试样长度为150mm,直径R25-32mm的拉伸式样长度为350·450,弯曲试样长度为300mm
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举一反三
【单选题】The notice of casualty to a ship must include ______.
A.
a request for assistance
B.
the location of the unit at the time of the casualty
C.
an estimate of the cost to repair damages
D.
the amount of fuel remaining
【单选题】42 Which statement is NOT true of Covent Garden?
A.
It is crowded with people.
B.
It is located in London.
C.
It is filled with stalls.
D.
It is surrounded by shops, churches, restaurants and cafes.
【单选题】The Sanhe old town ________ Ming and Qing Dynasty.
A.
date back to
B.
dates back to
C.
is begin
D.
dating back from
【单选题】32 Which statement is NOT true of Covent Garden?
A.
It is crowded with people.
B.
It is located in London.
C.
It is filled with stalls.
D.
It is surrounded by shops, Churches restaurants and cafes.
【单选题】The attempt to help blind people to see with sound ______.
A.
was similar to the sound location system of the bats
B.
led to a product that sent out sound waves of about 20,000 cycles per second
C.
was experimented on a submarine
D.
turned out to be a failure
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