The least serious damage caused by acid rain is _________.
A: poisoning of plant roots
B: leaching of heavy metals
C: changing the blood chemistry in
D: corrosion of metal structures
A: poisoning of plant roots
B: leaching of heavy metals
C: changing the blood chemistry in
D: corrosion of metal structures
举一反三
- Damage _________ the goods was caused by heavy rain _________ transit. A: to, in B: of, in C: on, during D: for, at
- 中国大学MOOC: Damage _________ the goods was caused by heavy rain _________ transit.
- We are sorry to find that the damage（）the goods was caused by heavy rain during transportation.
- Damage（）the goods was caused by heavy rain during transit. A: Aof B: Bfor C: Con D: Dto
- The flood caused serious ____ to the crops. A: damage B: damages