______ recent report stated that the number of Spanish speakers in the U.S. would be higher than the

number of English speakers by ____ year 2090.  [ ]

A. A; the      

B. A; /        

C. The; /    

D. The; a

治疗结核的首选药物是

A．庆大霉素
B．异烟肼
C．乙胺丁醇
D．链霉素
E．对氨基水杨酸