问题补充:
The stamps were according to their styles and features.
A. found out
B. sorted out
C. put out
D. taken out
答案:
A. found out
(答案→)B. sorted out
C. put out
D. taken out
解析:本题考查动词短语辨析。find out“发现,找出”;sort out“分类”;put out“扑灭(火)”;take out“提取出”。句意为:这些邮票根据它们的样式和特点被分类出来。