男性，62岁，咳嗽、咳痰30余年，体检：桶状胸，两肺闻及干湿啰音，肺动脉瓣区第二心音亢进。心电图示电轴右偏，V1～V3导联Qs波，R+S=1．5mY，应诊断为（）

A.慢性支气管炎、肺气肿

B.慢性支气管炎急性发作、肺气肿

C.慢性肺源性心脏病

D.肺气肿、冠心病

E.COPD、心肌梗死

• (A) 条件(1)充分，但条件(2)不充分．
• (B) 条件(2)充分，但条件(1)不充分．
• (C) 条件(1)和(2)单独都不充分，但条件(1)和条件(2)联合起来充分．
• (D) 条件(1)充分，条件(2)也充分．
• (E) 条件(1)和条件(2)单独都不充分，条件(1)和条件(2)联合起来也不充分．

An automobile dealership sells only sedans and coupes. It sells each in only two colors: red and blue. Last year, the dealership sold 9,000 vehicles, half of which were red. How many coupes did the dealership sell last year
(1) The dealership sold three times as many blue coupes as red sedans last year.
(2) The dealership sold half as many blue sedans as blue coupes last year.