单项选择题
A.人们增加收入的愿望不仅是对于高收人所能带来额外的舒适的愿望,也是对于成功的愿望。 B.人们渴望增加收人,既是为了高收入带来的额外的舒服,也是为了满足成功的欲望。 C.人们希望增加收入,既是为了更高的收入能够带来更多的舒适,同时也是为了获得成功感。 D.人们想要增加收入的愿望是同样多的成功欲望,如同为了额外的舒服,那是较高的收入所能得到的。
A.A type of wild pig B.diseased lower animals C.a group of migrating birds D.a variety of means
A.It was first found in a group of very old birds. B.All the different strains can be found in wild birds. C.It existed over 100 million years ago. D.It can survive in many different places.