Directions: In this section, you’ll hear some passages. At the end of each passage, you'll hear some questions. Both the passage and the questions will be spoken only once. After each question, choose the best answer from the four choices marked A, B, C, and D. Questions 15 to 17 are based on the passages you have just heard.[音频]
A. 1,000.
B. 2,500.
C. 5,500.
D. 8,000.
查看答案
Listen to the recording
A. STEM educators at high schools and universities use different teaching styles.
B. STEM students find the study materials much more boring than expected.
C. STEM educators find it difficult to arouse students’ interest in their courses.
D. STEM students face much fiercer job competition after they graduate.
Listen to the recording
A. Five years ago.
B. Four years ago.
C. Three years ago.
D. Two years ago.
Questions 18 to 20 are based on the passages you have just heard.
A. 40,000 m2.
B. 30,000 m2.
C. 20,000 m2.
D. 10,000 m2.
Listen to the recording
A. Because he wanted to educate people and preach to them.
Because he wanted to share his religious beliefs with others.
C. Because he wanted to leave his precious legacy to his children.
D. Because he wanted to share his privately collected artifacts.
微信支付 
支付宝支付