Flying to shanghai from Beijing______ about 1 hour and _____1,000 yuan.

A．spends, costs

B．takes, spends

C．costs, costs

D．takes, costs

语音震颤增强见于（）。

A.阻塞性肺不张

B.胸膜肥厚粘连

C.接近胸膜的肺内大空洞

D.胸腔积液

E.以上都不是