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According to the passage, one of the reasons why newborns in mountain communities are underweight is...

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Develope.  Theatre.  Color.  Honour.  
a positive experience  a chance to get a perfect job  a chance to meet challenges  one item in the schedule  
Newton figured out the orbit of the comet.  Halley figured out the orbit of the comet first.  Newton gave Halley some help.  Halley died before 1758.  
treats his customers sharply  always has just what you want  does not waste his time on difficult customers  tries to sell something a customer does not particularly want  
It needs not to be regularly replaced  It is designed to protect from possible impact  It is required to be worn on deck at all times by all ships  fibreglass hardhat should not be used on board ships  
Not all objects reflect light.  All objects reflect light.  One particular object reflects only one color of light.  No objects will reflect all colors of light.  
One third of the world's population drinks coffee.  Coffee is native to Colombia.  Coffee can keep one awake.  Coffee drinks were first made by Arabs.  
temporary glancing away from the listener  eye contact of more than one second  improperly-imed ceasing of eye contact  constant adjustment of eye contact  
not used to express one's readiness to do something in the immediate future  used with some verbs but not with others to express future intention  basically the same in English as it is in Spanish  not the most difficult problem for foreign students  
it's a major city of Japan  it's a famous city  it's a city in Asia  it's nice and cool in summer  
Knitting helps one get rid of bad habits.  Knitting helps one get free from a bad mood.  Knitting requires patience.  Knitting is a profit-making business.  
one of the serious social problems  the present situation of the homeless  the make-up of the homeless  the life of the homeless  
a good mood and a pleasant psychological state.  a positive mood and a good physical state.  a positive mood and a positive attitude toward one's poor health.  a positive mood and a. positive attitude toward one's social status.  
3.3 million.  Almost half of the population.  One third of the population.  One fourth of the population.  
Almost half of the children of two left-handed parents will be left-handed  At least 84 percent of left-handers are born of two right-handed parents  One in ten of Americans are left-handed  In the majority of genetically identical twins, one will be right handed, the other left  
by what is or is not against the rules.  by its impact on other people.  by one’s thoughts and feelings towards it.  by the kind of damage it does to others.  
special precautions to deal with heat  engine room safety procedures such as earmuffs, safety glasses, work clothes  emergency escapes  the location of safety equipment around the ship  
Luce is a spokesman of Time Warner.  Gerald Levin is liable to compromise.  Time Warner is united as one in the face of the debate.  Steve Ross is no longer alive.  
maintain strong ties with the British Empire  fight for more territory for his country  found the Republican party  guarantee the status of new states  
someone who has little to do  someone who enjoys no spare time  somebody who is wandering about with nothing to do  as many people as possible  

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