Thegovernmenthasannouncedplanstocutback       defensesp...

問題詳情：

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. 意爲“削減，減少”；介詞by後接百分比時表程度。

知識點：介詞

題型：選擇題