问题
单项选择题
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.
A. promising
B. overwhelming
C. threatening
D. astonishing
答案
参考答案：C
解析： 本题中，ominous的意思是“不吉利的”。C项的threatening“凶兆的”符合题意。其他三项“promising有希望的；overwhelming势不可挡的；astonishing令人吃惊的”都不正确。