井下作业应做到哪八防?
参考答案:井下作业应做到防掉、防喷、防冻、防滑、防顶、防电、防漏、防火。
One of the most famous monuments, the Statue of Liberty, ________ to the USA in the 19th century
by the people of France. [ ]
A. was presented
B. is awarded
C. has shown
D. had presented
住宅设计卫生审查时,通常审查的图纸中不包括
A.住宅所在地段的总平面图
B.住宅的平面设计图、立面图、剖面图
C.卫生技术设备的设计图
D.门窗、通风口设计图
E.各种施工图