问题补充:
It shows that a knowledge of first aid can .
A. make a difference
B. fall ill
C. squeeze out
D. put its hands on
答案:
(答案→)A. make a difference
B. fall ill
C. squeeze out
D. put its hands on
解析:考查短语辨析。make a difference 有意义,有所不同,fall ill 生病,squeeze out挤出,put its hands on着手工作,句意:表明急救知识会有意义。所以选A。