• 2021-04-14
    The initial sound of “peak” is aspirated while the second sound of “speak” is unaspirated. They are allophones.

  • 内容

    • 0

      The attempt to help blind people to see with sound ________. A: was similar to the sound location system of the bats B: led to a product that sent out sound waves of about 20,000 cycles per second C: was experimented on a submarine D: turned out to be a failure

    • 1

      In the historical development of language, sound change is inevitable, such as sound loss, sound a______ and sound movement.

    • 2

      A sound mind is inseparable from a sound body. The word “sound” means______.

    • 3

      中国大学MOOC: The process of coarticulation in which the first sound get influenced by the second is called ______ coarticulation.

    • 4

      That ____ quite interesting. A: aren't sound B: don't sound C: isn't sound D: doesn't sound