迁入会引起种群的变化是()
A.种群数量减少
B.种内竞争降低
C.种间竞争降低
D.种群数量增加
参考答案:D
简述我国金融风险的主要表现及我国金融风险防范的总的指导方针。
Generally speaking, how many students fail this course
A.A few.
B.Many.
C.None.
D.All.