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The first two stages in the development of civilized man were probably the invention of primitive...

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Those  These  There  They  
at which  in which  on which  with which  
that  at which  which  when  
too long  such long  as long  so long  
Forming,storming,norming,and performin  Storming,norming,forming,and performin  Norming,storming,forming,and performin  Forming,norming,storming,and performin  
and  but  moreover  for  
vacuum drag from the auxiliary condensate system  individual vacuum pumps  a single non-condensing air ejector  a two stage air ejector  
of which  that  which  what  
is  was  has been  is being  
Forming, storming, norming, and performing.  Storming, norming, forming, and performing.  Norming, storming, forming, and performing.  Forming, norming, storming, and performing.  
qualities    interests    stages    advice  
Gravity siphon effect  Higher vacuum in the second-stage  Difference in brine density between first and second stages  lower pressure in first-stage  
Right  Wrong  Not mentioned  
combined as part of the salt water feed heater  the open area above the brine levels in the first and second stages  combined as part of the distillate cooler  another term used to describe the vapor feed heater  
a stage  a step  a development  a way  
a necessity  necessities  necessarily  necessity  

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