单词：liquid-filled pressure vacuum breaker
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Cake Mixes And High Altitude Directions Look on the side of a cake mix box and you might find special directions for baking the cake at high altitudes. Why do bakers gave to adjust their cake ingredients when they live at higher elevations? Because a
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Last time we talked about how astronauts eat and drink under weightless conditions in space. Today we'll cover the next question kids love to ask-how do astronauts go to the bathroom in space? It may sound silly, but it's really a good question, beca
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5. Rosenberg argues convincingly that public-health advocates ought to take a page from advertisers, so skilled at applying peer pressure. 【分析】复合句。句子主干为 Rosenberg argues...that...，其中 that 引导宾语从句。so skille
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It may sound silly, but its really a good question, because weightlessness does make a visit to the latrine a tricky proposition. Weightlessness poses two main problems in the bathroom. The first is that an astronaut could drift away from the bowl at
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迈克尔.杰克逊：Heartbreaker Heartbreaker Heartbreaker Heartbreaker You wanna be a heartbreaker Heartbreaker Heartbreaker You wanna be a heartbreaker Heartbreaker Heartbreaker You wanna be a heartbreaker Heartbreaker Heartbreaker yeah You're lo
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Want to step outside to take in the scenery or pick up some rocks? As familiar as it might look beyond the port hole, Mars is dangerously alien. The upside is the low gravity will give you super jumping abilities, the down, the almost complete lack o
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