Question

AIDs is a disease that _______ the body”s  immune system.
A breaks out   B. breaks into   C. breaks down   D. breaks up

Answer 1

C

词义辨析。breaks out战争，火灾的爆发；breaks into闯入；breaks down损坏；breaks up结束，使破碎。句意：爱滋病是一种破坏人体免疫系统的疾病。所以选C。