超星 - Unit One Part D Section C passage 2

单选题

Questions 19 to 21 are based on the passage you have just heard.According to the passage, how long have dogs been of assistance to humans?

A. For 100 years.
B. For hundreds of years.
C. For less than 100 years.
D. For 1,000 years.

查看答案

单选题

Where can you find proof that dogs have been helping humans for many years?

A. Wood carvings.
B. Scrolls.
C. Wall paintings.
D. All of the above.

查看答案

单选题

Which of the following statements is NOT mentioned in the passage?

A. Specially trained working dogs can sniff for drugs, weaponsand bombs.
B. Dogs are trained to do search and rescue.
C. Dogs are trained to take care of babies at home.
D. Rescue dogs can look for possible survivors during crises.

查看答案