Indoor air pollution can threaten the health of closely confined farm animals and the workers who tend them and perhaps as well impairs the quality of such farm products like eggs, poultry, and pork.
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Aperhaps as well impairs the quality of such farm products like
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Bperhaps as well impairs the quality of such farm products as
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Cperhaps also impairs the quality of such farm products like
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Dmay also impair the quality of such farm products like
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Emay also impair the quality of such farm products as
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正确答案: E