相关考题
-
单项选择题
场景中修建该隧道及地下工程的正台阶环形开挖法的适用条件是（）。
A．地层好，跨度≤8m
B．地层较差，跨度≤12m
C．地层差，跨度≤12m
D．地层差，跨度≤14m -
单项选择题
场景中进行喷锚加固支护该隧道施工时，喷射混凝土封闭开挖面应采用早强混凝土，喷射厚度宜为（）。
A．50～100mm
B．100～150mm
C．150～200mm
D．200～250mm -
问答题
In a lottery a person may win a million dollars or more. What would be the advantages of winning a million dollars’? Would there be disadvantages? You should write a composition of no fewer than 120 words on the subject on the Answer Sheet.
