According to the author, 'peak oil' means
A．the highest point of oil demand.
B．the top supply of crude oil.
C．the largest consumption of oil.
D．the longest period oil reserve could last.

未分类题From the passage, we can learn that the main job for Apple isA．manufacturing the phone.B．assembling the phone.C．designing the phone.D．selling the phone.

未分类题What is the main reason for Samsung to act as a supplier for Apple?A．To make money from Apple.B．To reduce its production cost.C．To learn from its component.D．To enlarge the popularity of its products.

未分类题Which of the following is the best title for this passage?A．A New Clue in Predicting EarthquakesB．Increases in Subterranean PressureC．An Accidental DiscoveryD．The Use of High-Tech Equipment in Earthquake Prediction

未分类题According to the text, 'seasoned'(Line 1, Paragraph 1)probably means

未分类题We can learn from the fourth paragraph that P-wavesA．are difficult to detect.B．appear shortly before an earthquake.C．are very destructive.D．appear during an earthquake.