複選題
40.What would be an appropriate title of this passage?
(A) Enclosure of rats
(B) Rats’ social disease
(C) The deviant behavior of rats
(D) Overpopulation and social behavior
(E) The effect of overcrowding on rats

答案:登入後查看
統計: A(34), B(58), C(105), D(198), E(185) #923423