→英语｜The Beginning of Drama There are many theories about the beginning of drama in ancient Greece. The on most widely accepted today i…〔12-01〕

  →英语｜Electricity The modern age is an age of electricity. People are so used to electric lights, radio, televisions, and telephones tha…〔12-01〕

  →英语｜The Definition of “Price” Prices determine how resources are to be used. They are also the means by which products and services th…〔12-01〕

  →英语｜Schooling and Education It is commonly believed in United States that school is where people go to get an education. Nevertheless,…〔12-01〕

  →英语｜The Language of Music A painter hangs his or her finished pictures on a wall, and everyone can see it. A composer writes a work, b…〔12-01〕