第6题: [单项选择]What does the passage tell us about rainfall in the desert A. It never rains. B. It rains so little that nothing can live. C. It rains unexpectedly. D. It rains very infrequently. 参考答案:D 答案解析:第一段的最后一句“Rains may only come once in five or six years or not fall for a decade or more.The Mojave d