A-A+
As skies fill with millions of migrating birds
问题详情
As skies fill with millions of migrating birds, European scientists say the seasonal miracle appears to depend on a seeming ______ :The fatter the bird, the more efficiently it flies.
A．interruption
B．description
C．qualification
D．contradiction
参考答案
正确答案：D
解析：根据后面的意思，即“鸟越胖，飞的效率越高”，所以是矛盾的。
