It is important to understand the crime’s nature to prevent crime. As we know, most crimes are about things, not the persons.
A. from
B. on
C. to
D. against
网友回答
A. from
B. on
C. to
(答案→)D. against
解析：考查介词;句意：想防止犯罪先要了解犯罪这是很重要的，我们都知道，大多数犯罪是关于物品的，不是针对人的。选D。against，反对，针对。