每组词汇学习有15道小题。在每道题的句子里都有一个加底线的词或短语,请在四个选项中找出与加底线的词或短语意义最相近的一项。 # }- g& W7 ^) O3 o1.The old concerns lose importance and some of them vanish altogether. * @" n5 q0 |/ g A)develop B)disappear C)linger D)renew6 `8 v4 ~* i7 y B* R
2.In the United States educational system, intermediate school is the transitional phase between the primary grades and high school.3 `7 Q1 z! k1 ^% f# f$ D- y; J
A)stage B)notion C)pattern D)alternative( j' C2 D( b2 i) Q/ e7 A/ O
3.Fluoride deters tooth decay by reducing the growth of bacteria that destroy tooth enamel. - J3 H8 p2 u+ L& o7 e( a A)facilitates B)overwhelms C)inhibits D)loosens6 H i) F R! {; t6 a
4.The firm of Bonnin and Morris in Philadelphia Was probably the first American company to manufacture porcelain.' l) E; n0 V* \; D( E
A)Silverware B) crystal C) china D) linen ( l+ m$ y5 E! j; z) [5.Gunpowder was used extensively in firearms prior to 1990. / p1 }! }: Z, B9 V' E' ?7 A6 Q, h A)in B)around C)from D)before