[p][/p] [p][b]快速阅读[/b] [/p] [p]1. c. new explanations for the obesity epidemic. [/p] [p]2. a. gained the least weight [/p] [p]3. b. it causes sleep loss [/p] [p]4. d. it contributes to our weight gain. [/p] [p]5. c. it suppresses their appetite. [/p] [p]6. d. those who quit smoking. [/p] [p]7. b. the rising proportion of minorities in its population [/p] [p]8. unclear [/p] [p]9. family size [/p] [p]10. partly genetic [/p] [p]简短回答问题 [/p] [p]47. lighter and more absorbent [/p] [p]48. the potential in the u.s. [/p] [p]49. established athletic footwear industry [/p] [p]50. informally [/p] [p]51. the team spirit and shared values of the athletes [/p] [p][/p] [p][b]仔细阅读[/b] [/p] [p]52. b. by its sustainability [/p] [p]53. d. the decrease of brodiversity [/p] [p]54. c. they are not necessarily sustainable. [/p] [p]55. a. it will go through radical changes. [/p] [p]56. d. to urge people to rethink what sustainable agriculture is. [/p] [p][/p] [p]57. a. they were of inferior races. [/p] [p]58. b. they can do just as well as their predecessors. [/p] [p]59. d. they may forever remain poor and underachieving. [/p] [p]60. c. prevent them from being marginalized. [/p] [p]61. b. how to help immigrants to better fit into american society. [/p] [p][/p]