题文
Now the world’s attention ________ the stock markets，as they have a great influence on the world’s economy.
| A．is fixing on | B．has fixed on |
| C．is being fixed on | D．had been fixed on |
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Now the world’s attention ________ the stock markets，as they have a great influence on the world’s economy.
| A．is fixing on | B．has fixed on |
| C．is being fixed on | D．had been fixed on |
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