Using some()fuels ,such as natural gas, in vehicles can generally;reduce harmful pollutants and exhaust emissions.


Using some()fuels ,such as natural gas, in vehicles can generally;reduce harmful pollutants and exhaust emissions.

A.optional

B.alternative

C.replacement

D.substitute

正确答案:substitute


Tag:体验综合商务英语 时间:2024-01-12 10:36:20