With the development of agriculture, the people ________ village I taught are now living a happy life.

A．in whose

B．whose

C．in which

D．which

胸部CT扫描时，需采用俯卧位的情况是（ ）

A．肺癌的分期诊断

B．观察肺内肿物形态

C．测量肺内病变大小

D．了解胸水流动性

E．观察肺弥漫性病变