30. The professor offered several ________ suggestions about how we might reduce air pollution.
(A) industrious
(B) indifferent
(C) disposable
(D) constructive

答案：登入後查看
統計： A(14), B(16), C(8), D(176), E(0) #613629

詳解 (共 2 筆)

#3704884
constructive建設性
2
0
#1034207
A.勤勞的 B.中等的 C.可動用的 D.建設性的
0
1