I like the music _______ I can sing along with. [ ]
A. what
B. that
C. who
D. why
答案:B
促使全科医学产生的背景不包括()。
A.人口的迅速增长与老龄化
B.人群疾病谱与死因谱的变化
C.医疗费用的高涨
D.健康观的变化
E.环境污染的加剧
My grandparents like to live in a house is not very big but bright and comfortabe.
A. which B. who C. what