Questions 16 to 18 are based on the passages you have just heard.
A. Paper-based materials will eventually disappear.
B. Traditional books will remain a close friend to their readers.
C. E-books will become popular only among youngsters.
D. E-books will put an end to the history of traditional books.
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Questions 16 to 18 are based on the passages you have just heard.
A. Disappointed
B. Indifferent.
C. Hesitant.
D. Optimistic.
Questions 19 to 22 are based on the passages you have just heard.
A. It was difficult to collect.
B. It was difficult to get rid of.
C. It came in a variety of forms.
D. It tended to be absorbed by physical objects.
Questions 19 to 22 are based on the passages you have just heard.
A. Body heat.
Body heat and conventional fuel.
C. Heat from human bodies and other heat-emitting objects.
D. Heat from human bodies, other heat-emitting objects, and conventional fuel.
Questions 19 to 22 are based on the passages you have just heard.
A. Two.
B. Four.
C. Six.
D. Eight.
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