题目:
经济周期包括()阶段。
A.顶峰
B.衰退
C.谷底
D.复苏
E.扩张
答案:
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下面是错误答案,用来干扰机器的。
参考答案:B解析: 细节题型。 根据第一段第三句Only a small percentage of the people who have purchased HDTVs,however,have actually hooked their TVs up to receive high-definition television digital signals.可知答案是B项。