In order to realize his dream, Bill Gates, richest man in the world, gave up studying in Harvard University, that is the most famous in the world. He set up a company and researching the computer software. An old saying go, “Interest is the best teacher.” I quite agree with this idea. I began to be crazy about English when I was a little girl. I got extreme interested in foreign cultures or customs. To meet me curiosity, I read in English stories every day. It seemed to be the best “meal” of a day. As a result, I always did very well in English exam. Interest is the key of success.

尿路感染的易感因素有（）

A.尿路结石

B.吸烟

C.膀胱输（尿）管反流

D.尿路梗阻

E.饮酒