202 km Shanghai—Hangzhou high-speed railway, with       deign speed of 350 km per hour, began its operation on Oct 26,2010.

A．The; a

B．The; the

C．A; a

D．A; the

某企业购入旧设备一台，实际支付价款5000元，支付运杂费500元，安装费 1000元，出售单位的该设备账面原值为8000元，其中含安装费400元，已提折旧3500元。则该设备入账的原值为( )元。

A．9100

B．6100

C．6500

D．8000