托福词汇辅导：托福关键词汇(23)

　　1. Scientific analysis should exclude all facts and observations that are not relevant to the investigation in question.
　　[A] dependable for [B] recognized as [C] available for [D] connected with

　　2. Boxwood is close-grained, hard, and polishes nicely when waxed.
　　[A] carves [B] bleaches [C] shines [D] wears

　　3. Companies in the United States usually reimburse employees travel expenses incurred on business trips.
　　[A] share [B] pay back [C] ask for [D] charge

　　4. As a nerve cell is depolarized, it releases nerve impulses.
　　[A] encircles [B] emits [C] pushes [D] shields

　　Keys: DCBB