59.We find that some birds _______ twice a year between hot and cold countries.(A) transfer(C) migra

問題詳情

59.We find that some birds _______ twice a year between hot and cold countries.
(A) transfer
(C) migrate
(B) commute
(D) emigrate

答案：C
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)