题目内容
The information of the global climate conditions in the past can be obtained(获得)through _________.
- A.separating carbon dioxide from the air
- B.examining the growth ringsof trees
- C.comparing temperatures in different areas
- D.studying the ice and air caught in each layer
D
这是一道细节推断题。根据第三段“And the ice and air caught in each layer have begun to answer questions about the climates in the past.”可判断出对沉积在各层的雪和对空气的研究可知道过去气候的状况。
这是一道细节推断题。根据第三段“And the ice and air caught in each layer have begun to answer questions about the climates in the past.”可判断出对沉积在各层的雪和对空气的研究可知道过去气候的状况。
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