A.蛛形綱 B.昆蟲(chóng)綱 C.甲殼綱 D.倍足綱 E.唇足綱
A.絲蟲(chóng)病 B.弓形蟲(chóng)病 C.黑熱病 D.鼠疫 E.瘧疾
A.蟲(chóng)體分頭胸部和腹部或頭胸腹愈合為一體 B.成蟲(chóng)3對(duì)足 C.成蟲(chóng)4對(duì)足 D.觸角1對(duì) E.翅1對(duì)