根据下列美国人一年中使用不同媒体的平均时间，回答101~105题。在各种媒体中，使用

When and where to build the new power station ______ yet.

A．is not decided

B．are not decided

C．has not decided

D．have not decided

—You seem busy these days.

—Yes. I’m looking for a house. It’s really not easy to find _____ with four bedrooms.

A．one

B．the one

C．it

D．that

调节器官血流量的主要血管是

A．毛细血管

B．微动脉

C．静脉

D．动—静脉吻合支

Richard looked at the envelope and _______Jenny's handwriting immediately.

A．recognized

B．found

C．realized

D．concerned

支气管肺炎易发生于（）

A.两肺上叶

B.右肺中叶

C.两肺尖

D.左肺舌叶

E.两肺下叶