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The world’s population is getting larger and larger, so scientists are trying to ______ new ways to solve the food shortage.
A.keep up withB.come up with
C.make up withD.catch up with
B

试题分析:keep up with赶得上,和……保持联系;come up with提出,想出;make up with与……重修旧好;catch up with赶上,追上。句意:世界的人口数目正在变得越来越大,因此科学家们正在努力想新办法来解决食物短缺问题。结合语境可知选B。
点评:解答此类题型的要点是了解各个短语的基本含义及用法的不同,同时注意其表示多个含义的现象,然后结合语境选择合适答案。
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