建设项目污水排放量小于50000m/d时,大型湖泊的一级评价每()布臵一个取样位臵。
A.3~6kmz
B.1~2.5km
C.1.5~3.5km
D.4~7km
参考答案:A
The programs ______ easily if you use a short-wave radio. [ ]
A. can pick up
B. pick up
C. will pick up
D. can be picked up
甲烷化反应器要求原料气CO与CO2的含量小于()。
A.0.1%
B.1.0%
C.0.7%
D.10%