_____ has been heated discussion over which country bakes the world's best pizza: Italy, where pizza began or

the US, where it was globalized. [ ]

A. It

B. There

C. That

D. This

高血压危象首选

A.硝普钠

B.硝酸甘油

C.地尔硫卓

D.阿替洛尔

E.贝那普利