企源知识库

People found to their horror that two-thirds of the adult population in that area had ______ AIDS.
A、contacted
B、contrasted
C、contracted
D、compacted
【正确答案】：C
【题目解析】：contact接触；contrast对比；contract收缩，感染；compact压缩，使简洁句意：人们惊恐地发现，该地区三分之二的成年人感染了艾滋病。