Many gifted students _____ poorly in school because they found school unchallenging and as a result lost interest.

A．worked on

B．got on

C．lived on

D．carried on

数据类型是( )。

A) 字段的另一种说法
B) 决定字段能包含哪类数据的设置
C) 一类数据库应用程序
D) 一类用来描述Access表向导允许从中选择的字段名称