题文
As a result of the use of the new technology, the production of this product________50 percent.
| A．has risen to |
| B．has been raised to |
| C．has risen by |
| D．has been risen by |
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As a result of the use of the new technology, the production of this product________50 percent.
| A．has risen to |
| B．has been raised to |
| C．has risen by |
| D．has been risen by |
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