【简答题】入户电缆YJV22-4*16的工程量是()m
【简答题】假设同一名称的产品有不同的型号和产地,则计算每种产品平均单价的SQL语句是( )。 A)SELECT产品名称,AVG(单价)FROM 产品 GROUPBY 单价 B)SELECT产品名称,AVG(单价)FROM 产品 0RDERBY 单价 C)SELECT产品名称,AVG(单价)FROM 产品 0RDERBY 产品名称 D)SELECT产品名称,AVG(单价)FROM 产品 GROUPBY 产品名...
【单选题】She was here for 15 years, but she never really_________.
【简答题】I asked Diana why she came here seven years ago. She said she was looking for ____15____.
【简答题】入户电缆YJV22- 4*16的工程量是()m