_________ that government can lead them out of the financial crisis, people are optimistic about the future of the country.

A Convincing          B Convinced           C To convince      D Having convinced

伴有心衰的支气管哮喘发作应首选（）

A．丙卡特罗

B．异丙肾上腺素

C．氨茶碱

D．肾上腺素

E．麻黄碱