简述明代的琉璃技术及重要建筑实例

A. You can use aggregate functions in any clause of a SELECT statement.
B. You can use aggregate functions only in the column list of the select clause and in the WHERE clause of a SELECT statement.
C. You can mix single row columns with aggregate functions in the column list of a SELECT statement by grouping on the single row columns.
D. You can pass column names, expressions, constants, or functions as parameter to an aggregate function.
E. You can use aggregate functions on a table, only by grouping the whole table as one single group.
F. You cannot group the rows of a table by more than one column while using aggregate functions.

A. 双子叶植物的种子一般没有胚乳，整个种子是由受精卵发育来的
B. 单子叶植物和双子叶植物种子胚的结构完全相同
C. 种子萌发时胚根首先突破种皮向地生长，并发育成根
D. 种子萌发后依靠细胞分裂发育成幼苗

A. 正确
B. 错误

A. 实践性
B. 社会性
C. 服务性
D. 体验性