( ) is the science dealing with the application of chemical principles to understanding biology.
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There are three domains in the tree of life, including ( ), ( ), and ( ).
There are two types of cells: ( ) and ( ).
新中国能另外选择资本主义经济制度。
A. 对
B. 错
在 Excel2016中,下面关于分类汇总的叙述错误的是( )
A. 分类汇总前必须按关键字段排序数据库
B. 汇总方式只能求和
C. 分类汇总在“数据”选项卡中
D. 分类汇总可以被删除,但删除汇总后排序操作不能撤销