六级Congress needs to find the courage to allow Medicare to pay preferentially for treatments proven to be superior.
国会需要找到勇气,允许医疗保险优先支付被证明是优越的治疗费用。
2016年6月阅读原文
四级The authors note that “we have preferentially focused our crop improvement efforts on feeding animals and cars rather than on crops that feed people and are the basis of food security in much of the world.
作者指出,“我们优先将作物改良工作重点放在喂养动物和汽车上,而不是放在喂养人类的作物上,这些作物是世界大部分地区粮食安全的基础。
2015年6月大学英语四级考试真题(第2套)
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