Questions 1 through 3 are based on the following report. 1. A. The Spanish flu.

Questions 1 through 3 are based on the following report. 1. A. The Spanish flu.
    B. The Asian flu.
    C. The Hong Kong flu.
    D. Bird flu.
2. A. In 1968.
    B. In the 21st century.
    C. In 1957.
    D. Over a century ago.
3. A. Bird flu viruses.
    B. Several kinds of flu.
    C. Causes of flu.
    D. Some most common viruses.

试题答案

1-3: ADB