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马尾松产于我国的松花江流域。
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[听力原文]11-15One of the most famous tourist attractions in the State of California is the giant redwood. This redwood might be described as" the tree with the moving foot" because it is not even a native California, believe it or not!These trees, which are among the largest and oldest of all living things, moved to California from the Arctic. Long, long ago they grew in the Arctic, just as enormous and tall as they are today. But the warmer climate drew them south ward and it took some seventy -five million years to complete the move.Carried by birds, winds, and some strong - teethed animals, the seeds of the redwood traveled thousands of miles from what is now the northern - most tip of Alaska to California, their last stand.Only the hardest seeds survived--a few that visited Europe soon died out. But those that made it to California put down roots, grew into luxuriant forests, and became camera subjects for the hundreds of thousands of tourists who visit California’s giant redwood each year. Where did these trees grow a long time agoThese trees grew a long time ago in（）
木材刨光消耗量：单面刨光为1～1.5mm，双面刨光为2～3mm，料长2m以上应加大1mm。
[听力原文]M: How long does it take you to get to workW: It’s only a 15-minute bus drive early in the morning. But coming home at the end of the day is quite different. Then it takes at least 20 to 30 minutes. How much time does the woman spend in traveling from her home to work in the morning（）
木门一般是由门框、门扇及五金件组成。
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