熊猫虾仁@三侠
36. The more recent steep climb in grain prices partly results from the fact that more and more people want to consume meat products.
[F]
37. Social order is breaking down in many countries because of food shortages.
[K]
38. Rather than superpower conflict, countries unable to cope with food shortages now constitute the main threat to world security.
[C]
39. Some parts of the world have seen successful implementation of family planning.
[L]
40. The author has come to agree that food shortages could ultimately lead to the collapse of world civilization.
[B]
41. Increasing water shortages prove to be the biggest obstante to boosting the world's grain production.
[H]
42. The cost for saving our civilization would be considerably less than the world's current military spending.
[M]
43. To lower domestic food prices, some countries limited or stopped their grain exports.
[J]
44. Environmental problems must be solved to case the current global food shortage.
[L]
45. A quarter of this year's American grain harvest will be used to produce bio-fuel for cars.
[G]
ellalikesyou
三套。山西英语四级考试分三套卷子主要是为了防止作弊，在考场的时候，这三套是随机抽取的。英语四级考试是推动大学英语教学大纲的贯彻执行，对大学生的英语能力进行客观、准确的测量，为提高我国大学英语课程的教学质量服务。
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