列疾病中最容易发生向心性肥厚的是()
A．甲状腺功能亢进症
B．严重贫血
C．维生素B2缺乏症
D．高血压病
E．主动脉瓣关闭不全
参考答案：D
She always does very well in the English exams. But she can _____understand Englishradio programs. [ ]
A. always
B. hardly
C. already
D. easily
