When you open a file or run a program in a computer, a window appears on the desktop of your computer. The (67) of the window indicates which program you are currently working in arid its color will become blue if a window is active. When you click on The (68) , the window disappears and appears as a button on the taskbar. Clicking on a button in (69) will invoke a specific command.

A．menu bar

B．tool bar

C．scroll bar

D．status bar

依据《水利水电土建工程施工合同条件》，重新检验的费用可能由（）承担。

A.设计单位

B.发包人

C.施工单位

D.监理人

E.质量监督部门