19.Poor management， outdated technology， competition from overseas， and steel's replacement to materials like aluminum and fiber-reinforced plastics have all been cited as causes for the decline of the United States steel industry.

　　（A） steel's replacement to materials like

　　（B） the replacement of steel by such materials as

　　（C） the replacing of steel with materials of

　　（D） the replacing of steel by means of materials like

　　（E） to replace steel by materials such as

　　KEY：CDEAE DDECE BEBBC AACB