6. The ice shelf cores, with a total length of 215 meters (705 feet), were long enough to penetrate through glacial ice—which is formed from the compaction of snow and con...
【解析】根据题干要求定位到第五段,解决本题的关键是对第三句话“The job security that the US economy once offered to high school graduates has largely evaporated.”的理解,尤其需要注意本句的时态,定语从句“that the US economy once offered to high school...
17 this doesn’t prove that happiness causes firms to invest more or to take a longer-term view, the authors believe it at least 18 at that possibility. It’s not hard to imagine that local culture and sentiment would help 19 how executives think a...
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