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It is an established fact that factory workers work better, harder, and have _____ accidents when their machines are painted orange rather than black or gray.
| A．fewer | B．few | C．more | D．less |
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It is an established fact that factory workers work better, harder, and have _____ accidents when their machines are painted orange rather than black or gray.
| A．fewer | B．few | C．more | D．less |
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