問題詳情

1. Ladybird and mantis are the natural enemies of damaging insects and are known as ______ insects.
(A) beneficial
(B) disadvantageous
(C) profitable
(D) worthless

參考答案

答案：A
難度：困難0.263158
統計：A(15),B(23),C(6),D(6),E(0)

用户評論

【Jerryboy】評論

瓢蟲和螳螂是有害昆蟲的天敵，被稱為有益昆蟲。