People in some parts of the world often take their water for ______. They use as much wate

It is said in some parts of the world, goats, rath

One machine can do as much work as ______.A．40% of the peopleB．4% of the people in the wor

Which of the following is TRUE about the current situation？A．Some parts of Germany are in

In some parts of China where water shortage is very severe, people have a bath once in a b

听力原文:Stress is a very normal part of life. Most people feel stress at some time in the

Television has changed the lifestyle. of people in every industrialized country in the wor