40. ___
A. In place of physical therapy.
B. To control brain seizures.
C. To prevent heat disease.
D. To relieve tension.
41. ___
A. They like to have music in the operating room.
B. They solved problems better while listening to music they liked.
C. They preferred classical music.
D. They performed better when they used headphones.
42. ___
A. It increased the students’ while blood cell count.
B. It increased some students’ energy level.
C. It improved the students’ ability to play musical instruments.
D. It released a natural painkiller in some students’ bodies.
44. ___
A. Many artists lost faith in the value of art.
B. Many artists moved away from large cities.
C. Many artists were forced to take jobs in other fields.
D. Many artists in the United States moved to other countries.
45. ___
A. People wording in a large factory.
B. People walking on crowded city streets.
C. An everyday activity in a small town.
D. A well-known historical event.
微信支付 
支付宝支付