— How can I get more information about their company?

—You can visit their _____ at www. asdfg.com.

A．shop

B．company

C．website

D．organization

导致慢性阻塞性肺气肿和肺心病，占第一位的原因是：（）

A.慢性纤维空洞型肺结核

B.尘肺

C.支气管哮喘

D.支扩

E.以上都不是