Benefit one, but do no harm on another is ( )
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Two consumers share the same resource, each reduces the availability of resources of the other. It is called ( )
Dynamics of consumer-resource interactions reflect mutual evolutionary responses.
A. 对
B. 错
在书法史上,继二王之后成就最高、影响最大的书法家是( )
A. 欧阳询
B. 褚遂良
C. 颜真卿
D. 柳公权
颜体的“竖”画主要有( )
A. 短竖
B. 垂露竖
C. 竖撇
D. 悬针竖