實(shí)例講解托福閱讀推理題的解題技巧(存儲(chǔ)版)
【正文】 rbs?, and grass?es. This rapid? zone of trans?ition? is calle?d the upper?timbe?rline? or tree line. In many semia?rid areas? there? is also a lower?timbe?rline? where? the fores?t passe?s into stepp?e or deser?t at its lower? edge,usual?ly becau?se of a lack of moist?ure. 3. Which? of the follo?wing canbe? infer?red from parag?raph 1 about? both the upper? and lower? timbe?rline?s? are treel?ess zones?. mark fores?t bound?aries?. are surro?unded? by deser?tarea?s. suffe?r from a lack of moist?ure. 段落中已經(jīng) ?說(shuō)明， upper? timbe
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