The author indicates in the passage that conflict______.
A. is an inevitable struggle resulting from competition
B. reflects the struggle among social entities
C. is an opposition among individual social animals
D. can be avoided
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In the author's opinion, the speaker______.
A. gave a correct judgement of the English level of students
B. had exaggerated the language problems of the students
C. was right in saying that English teachers were not doing their jobs
D. could think and speak intelligently
Which of the following is the best title for the passage？
A. The Life Cycle of Locusts.
B. Migratory Locusts in the United States.
C. Locust Plagues in Nebraska.
D. The Reproductive Capability of the Locust.
某种可比产品成本降低额=可比产品按上年实际平均单位成本计算的本年累计总成本-本年累计实际总成本。（）
A. 正确
B. 错误
The speaker the author mentioned in the passage believed that______.
A. the language of the younger generation is usually inferior to that of the older generation
B. the students had a poor command of English because they didn't work hard enough
C. he was an excellent language teacher because he had been teaching English for sixteen years
D. English teachers should be held responsible for the students' poor command of English
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