On the one hand,cars are useful ,but on the other hand,they cause pollution.
答：一方面汽车有用，另一方面他们也造成污染继续答题：下一题
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- 1Three students were _____ for special praise at the class meeting.
- 2One of the firefighters won a(n) award for bravery.
- 3New medicines are producing remarkable results in the treatment of cancer.
- 4If you think getting a certificate means getting a job,you are keeping yourself.
- 5Five of those who got injured in the gas explosion were in _____ condition.