In the United States, about 10 million computers are thrown away every year! Because most unwanted computers are sent to a dump, they (____) have caused a problem. The computer industry and the government are working on ways to solve it (____). They (____) have concluded that there must be changes in the way the computers are built. They ( ____) must be made in ways that will allow their parts to be recycled. These (____) include the electronic parts, the glass screen of the monitor and pieces of the printer.

The problem with computers

列印
嵌入

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?