This is one of the most ______ ways of reducing pollution.
A: effective
B: efficiency
C: effect
D: efficient
A: effective
B: efficiency
C: effect
D: efficient
举一反三
- There are many ways to increase agricultural _______ in the poorer areas of the world. A: effect B: efficient C: effective D: efficiency
- Her boss is very satisfied with her for she is an____secretary. A: effective B: effect C: efficient D: efficiency
- We were most impressed with your _________. A: efficient B: efficiency C: effective D: effectively
- Thanks to the _____ of air transport, everyone is free to go anywhere at any time. A: effect B: efficient C: effective D: efficiency
- 中国大学MOOC: Repetition is one of the most ________ ( effect) ways for remembering new words.