• 2022-06-04
    If a 4% increase in income causes a 2% increase in the amount of books demanded, then
    A: The income elasticity of demand for books is negative
    B: Books are a necessity and a normal good
    C: Books are luxury goods
    D: Books are inferior goods
  • B

    内容

    • 0

      Demand for these books is high

    • 1

      According to the author, A: TV is more entertaining than good books. B: good books are as entertaining as TV. C: good books are not so entertaining as TV. D: good books are more entertaining than TV.

    • 2

      4、 These e-books are not going to __________the printed books, because many people believe that paper books just feel good in their hands 。

    • 3

      There are some _____ in our classroom. A: hundred of books B: the hundreds of books C: hundreds of books D: hundred of book

    • 4

      You'd better read as ______ you can. A: much books as B: many books as C: many books like