Thegovernmenthasannouncedplanstocutback       defensesp...

问题详情：

The government has announced plans to cut back        defense spending            10% next year.

 A. upon; to               B. on; by          C. of; by          D. for; to

【回答】

B

【解析】cut back on sth. 意为“削减，减少”；介词by后接百分比时表程度。

知识点：介词

题型：选择题