We don’t think the experiment is ___ failure. At least we have gained ___ experience for future success.
| A．the; a | B．a; / | C．a; an | D．the; the |
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We don’t think the experiment is ___ failure. At least we have gained ___ experience for future success.
| A．the; a | B．a; / | C．a; an | D．the; the |
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