Most scientists seem to agree that ________ certain limit should be set on________ consumption(消费) of cars to ease air pollution.
| A．a; the | B．/; the |
| C．the; / | D．the; the |
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Most scientists seem to agree that ________ certain limit should be set on________ consumption(消费) of cars to ease air pollution.
| A．a; the | B．/; the |
| C．the; / | D．the; the |
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