A.improve your work environment
B.cut your utility bills by half
C.get rid of air-conditioners
D.enjoy much better health
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单选题 | German chemicals giant BASF saves 200 million a year by________. | 查看答案 |
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单选题 | If you add enough insulation to your house, you may be able to________. | 查看答案 |
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单选题 | Some countries have tried to jump-start the market of heat pumps by________. | 查看答案 |
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单选题 | What does the European Union plan to do? | 查看答案 |
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单选题 | The author says she’ll one day take her clients to dinner in order to ________. | 查看答案 |
单选题 | The author was disappointed to find that ________. | 查看答案 |
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