单项选择题

The preventive drugs of avian coccidiosis include ivermectin, maduramicin ammonium premix and diclazuril premix etc.

A.正确
B.错误
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Prevention of avian coccidiosis could be achieved by drug prevention and vaccine immunization.
A.正确
B.错误
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The development of Dermanyssus gallinae belongs to complete metamorphosis.
A.正确
B.错误
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