要清楚地反映出各年级的人数，需绘制条形统计图。[ ]
正确
So hard was the woman's life, but to her _____ , her only son was admitted to a top
university last year. [ ]
A. surprise
B. relief
C. astonishment
D. disappointment
我国脑性瘫痪的发病率（）
A.0.18％～0.4％
B.1.0％～2.5％
C.0.5％～1.0％
D.1.0％～1.4％
E.0.05％～0.1％
