There were two small rooms in the house, ____ smaller of which served as ____ kitchen.

A．the, a

B．a, the

C．the, the

D．a, a

施工测量验线工作的基本准则要求独立验线，( )等应尽量与放线工作无关。

A．观测人员

B．仪器设备

C．测法

D．施工定位

E．观测路线