地下储罐间应采用防渗混凝土墙隔开,以防止事故时串漏。规定罐与罐池内壁之间的净距不应小于()。
A、0.4m
B、0.5m
C、1.0m
D、1.5m
参考答案:C
It is raining so heavily now. Playing basketball on the playground is _____________
A.out of question
B.out of the question
C.out of breath
D.out of envy
碗扣式钢管脚手架采用每隔1m设l套碗扣接头的定型立杆和两端焊有接头的定型横杆,并实现杆件的系列标准化。()