语法与词汇 21.From 1965 to 1978 American consumer prices increased at an average annual rate of 5. 7 percent. This ominous shift was followed by consumer price gains of 13. 3 percent in 1979.
【正确答案】 C
【答案解析】本题中，ominous的意思是“不吉利的”。C项“threatening凶兆的”符合题意。其他三项“promising有希望的；overwhelming势不可当的；astonishing令人吃惊的”都不正确。