Tom is now in our class, but he once _____ in Westbrook High School for a term. [ ]

A. has studied

B. studied

C. had studied

D. studies

下列选项中，关于饰面砖粘贴工程，说法错误的是( )。

A．饰面砖粘贴工程有主控项目和一般项目
B．适用于外墙饰面砖粘贴工程
C．高度不大于100m、抗震设防烈度不大于8度，
D．采用满粘法施工的外墙饰面砖粘贴工程的质量验收