诊断阻塞性肺气肿有决定意义的辅助检查是（）。
A.支气管镜检查
B.X线胸片
C.血气分析
D.肺通气功能
E.血常规
参考答案：D
—Whom did she try to avoid meeting?
—________ was a certain boy with the intention of marrying her.
A．That
B．It
C．He
D．This
疫区来货入境时如没有进行申报，可以以后补报。 ( )
