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English, 22.06.2019 07:10
The âbig digâ the âbig digâ (the central artery/tunnel project) has been complex and challenging. located in boston, massachusetts, this tunnel is eight lanes wide and three-and-a-half miles long. what is most amazing about this tunnel is that it is constructed under a major highway and skyscrapers located in bostonâs financial district. construction crews used âclamshell excavatorsâ during this dig. these machines carved narrow trenches, and then a special substance was pumped into the trench to keep the dirt from caving in. finally, steel beams were lowered into the trench and concrete was pumped in. one problem that engineers faced while constructing the tunnel is the fact that the soil beneath boston is extremely loose and soggy. engineers solved this dilemma by freezing the soil and pumping very cold water into pipes beneath the city. to strengthen the soil even further, a special type of glue was injected into the ground to with the consolidation of the soil. 23 which phrase best defines the word excavator as used in the passage? a. a device used to measure underground temperatures b. a device used to level uneven surfaces c. a device used to move heavy objects d. a device used to dig holes
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English, 22.06.2019 08:30
Quiz active time remaining 55: 06 given that zabc - zdbe, which statement must zabc â labd zabd = zcbe zcbd < zdbe zcbd - labc mark this and return save and exit - next submit .. ment activity
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English, 22.06.2019 08:30
Gilman's the yellow wallpaper expresses the idea that doctors in the 19th century did not take into account the opinions and needs of mentally ill patients when treating them which line from they story best supports this theme
Answers: 1
Graph the system of equations below and find the solution y=2x y= -x+6...
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