A.防滲體應(yīng)高于兩岸接坡及上下游反濾料施工 B.防滲體應(yīng)低于兩岸接坡及上下游反濾料施工 C.防滲體與兩岸接坡及上下游反濾料應(yīng)平起施工 D.無所謂
A.5d B.6d C.7d D.8d
A.50% B.60% C.70% D.80%