【单选题】Which floor does Linda live on?
【简答题】Over forty years (pass) ______ since the first bridge was built in the district.
【单选题】He didn’t tell me _______.
A.
which floor did he live on
B.
which floor he lived on
D.
Which he lived on the floor
【单选题】________I met him,he was working as a secretary in a big company.
【判断题】用平均偏差表示测定结果精密度优于用标准差。