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【单选题】
(47857) 混凝土枕(含混凝土宽枕、混凝土岔枕及短轨枕)挡肩顶角处缝宽大于 ( ) 可判断为失效。A.
0.5mm
B.
1.0mm
C.
1.5mm
D.
2.0mm
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【简答题】阅读理解。 Death Valley is one of the most famous deserts in the United States, covering a wide area with its alkali sand. Almost 20 percent of this area is well below sea level, and Badwater, a salt water...
【单选题】The area is ______ with trails, some as wide as boulevards, that have been cut and maintained by elephants.
A.
blackmailed
B.
latticed
C.
isolated
D.
galloped
【简答题】Death Valley is one of the most famous deserts in the United States, covering a wide area with its alkali sand Almost 20 percent of this area is well below sea level, and Badwater, a salt water pool, ...
【简答题】Death Valley is one of the most famous deserts in the United States, covering a wide area with its alkali sand. Almost 20 percent of this area is well below sea level, and Badwater, a salt water pool,...
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