Section B
Directions: In this section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked [A], (B), (C) and [D]. Then mark the corresponding letter on Answer Sheet 2 with a single line through the centre.
注意: 此部分试题请在答题卡2上作答。
Passage One 【題組】28. (A)It collapsed at least once in the past 1.3 million years.
(B) It sits firmly on solid rock at the bottom of the ocean.
(C) It melted at temperatures a bit higher than those of today.
(D)It will have little impact on sea level when it breaks up.