题目

Directions: For each blank in the following passage there are four words or phrases marked A, B, C and D. Fill in each blank with the word or phrase that best fits the context. Oliver Twist, one of the most famous works of Charles Dickens, is a novel reflecting the tragic fact of the life in Britain in the 19th century. The author who himself was born in a poor family wrote this novel in his twenties with a view to reveal the ugly masks of those cruel criminals and to 36  the horror and violence hidden underneath the narrow and dirty streets in London. The hero of this novel was Oliver Twist,下列各组选项中，有错误的一组是A．合金—不锈钢、锡焊、生铁B．碱类—烧碱、纯碱、熟石灰C．干燥剂—浓硫酸、生石灰、氢氧化钠固体D．混合物—空气、高锰酸钾分解产物、稀盐酸