(湖南省雅礼中学2009届高三第七次月考 )A chance conversation with a stranger        lead a person to discover how little is known of other religions.

A．may

B．should

C．must

D．shall

支气管哮喘发作时下列哪项不会出现()

A．FEV/FVC%下降

B．MMEF降低

C．PEF增加

D．RV/TLC增加

E．RV、FRC增加