垂直放置的矩形平板，一侧挡水，该平板由置于上、下边缘的拉杆固定，则拉力之比T₁／T₂应为（）

A.1／4

B.1／3

C.1／2

D.1

Having the highest marks in her class, a scholarship was offered her by the Department.

A．she was offered a scholarship by the Department

B．a scholarship was offered to her by the Department

C．the Department has a scholarship to offer her

D．the Department offered her a scholarship