Where dose this conversation take place?[音频]
A. In a coffee bar.
B. In the canteen.
C. In the staff room.
查看答案
What's the relationship between the two speakers?
A. Diner and waiter.
B. Doctor and patient.
Colleagues.
Cause and effect is often used to explain the writer’s view.
A. 对
B. 错
Many hair problems________what you eat.
A. result from
B. result in
C. lead to
D. because
净购买成本是购买成本减去沉没成本。
A. 对
B. 错
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