【单选题】【消耗次数：1】
（ ）可以预防坍塌事故。
①
挖出的泥土沿着围墙对放
②
深度超过1.5米需要放坡或支护
③
同时拆除数层建筑
④
挖土方同时进行清理工作
参考答案：
复制
纠错
相关题目
【单选题】
计算土方放坡深度正确的是（）
①
垫层厚度小于200mm时不计算基础垫层厚度，即从上面开始放坡。
②
垫层厚度小于200mm时不计算基础垫层厚度，即从下面开始放坡。
③
垫层厚度大于200mm时不计算基础垫层厚度，即从上面开始放坡。
④
垫层厚度大于100mm时不计算基础垫层厚度，即从下面开始放坡。
【单选题】
关于计算土方放坡深度时，下列说法错误是（）
①
垫层厚度小于100mm时，即从垫层上面开始放坡
②
垫层厚度小于200mm时，即从垫层上面开始放坡
③
垫层厚度大于200mm时，放坡深度应计算基础垫层的厚度从垫层下面开始放坡
④
垫层厚度大于100mm时，放坡深度应计算基础垫层的厚度从垫层下面开始放坡
【单选题】
关于土方开挖放坡下列说法正确的是()
①
土类为单一土质时，普通土开挖深度大于1.2m时，允许放坡。
②
土类为单一土质时，坚土开挖深度大于1.5m时，允许放坡。
③
土类为混合土质时，开挖深度小于1.5m，允许放坡。
④
土类为混合土质时，开挖深度大于1.7m时，允许放坡。
随机题目
【单选题】
Please ______ you cigar before entering this building.
①
put down
②
put up
③
put off
④
put out
【单选题】
The duke interjected, “What you accuse us ______ is true. I am to blame.”
①
with
②
about
③
/
④
of
【单选题】
The young man ______ the charm of his new colleague, a blonde from England.
①
took a chance
②
threw a book at
③
fell victim to
④
comply with
【单选题】
The family were having dinner when the ______ buzzer of the door sounded.
①
quiet@muted
②
silent
③
low
【单选题】
There were plenty of places to ______ the highway and be unobserved.
①
pull off
②
pull out
③
pull up
④
pull down
【单选题】
It was essential that her thinking ______ calm and reasoned.
①
remained
②
remain
③
had remained
④
would remain
【单选题】
It ______ to keep calm when confronted with dangers.
①
pays
②
takes
③
costs
④
deserves
【单选题】
The humble bell-boy ______ his tongue reprovingly in front of the princess.
①
flipped
②
chuckled
③
clucked
④
flickered
【单选题】
At last this intermezzo _____, and I found myself in front of the gigantic City Hall.
①
came to an end
②
came to the end
③
came to end
④
came to ending