The fine filters will be arranged （） one can be cleaned while the other is operating.
举一反三
- At one end of the spectrum, organizations can be absolutely centralized, while at the other end, they can be completely decentralized.
- Rail transport can only be arranged within one country.
- How can we reduce noise pollution? One method is to ___________________________; the other one is to _______________ ______________ we can’t stop.
- People in one culture can hardly learn other cultures.
- We are going to have the TV fixed. A: prepared B: mended C: cleaned D: arranged