2015年是汾酒荣获巴拿马万国博览会甲等大奖章（）年。
参考答案：100
治疗本病首选药物为
A．炔雌醇
B．乙烯雌酚
C．甲地孕酮
D．醋酸氢化可的松
E．吗啡
— Mary's score on the test is the highest in her class.
— Really? She ______ have studied very hard.
[ ]
A. may
B. ought to
C. must
D. should
