• 2022-06-12
    5. What can we infer from the passage? A. Chilling plays an important role in cold transmission. B. Doctors have definite knowledge about cold. C. People began to study cold in the 1950s. D. Cold is a common disease but hard to cure.
    A: Chilling plays an important role in cold transmission.
    B: Doctors have definite knowledge about cold.
    C: People began to study cold in the 1950s.
    D: Cold is a common disease but hard to cure.