______ a noise just then?
举一反三
- ______ a noise just then A: Have you heard B: Were you hearing C: Are you hearing D: Did you hea
- Noise includes: ____________ noise, ____________ noise, ____________noise and ____________noise.
- Not until midnight ______. A: did the noise stop B: the noise stopped C: the noise did stop D: stopped the noise
- Noise differs from sound in that ______. A: noise interferes with the task being done B: noise is a special type of loud sound C: noise is usually unavoidable in big cities D: noise can be defined more precisely than sound
- Exposure to high-pitched noise results in more errors than exposure to low-pitched noise