[多项选择]关于增长量的说法,正确的有()。 A. 增长量是报告期发展水平与基期发展水平之差 B. 累计增长量是报告期水平与某一固定时期水平之差 C. 逐期增长量是报告期水平与前一期水平之差 D. 同一时间序列中,累计增长量等于相应时期内逐期增长量的乘积 E. 平均增长量是时间序列中逐期增长量的序时平均数
第37题: [单项选择]What does the man mean A. He went mountain climbing last year. B. He doesn’t want to go at all. C. He hasn’t traveled around the world yet. D. He wants to go climbing. 参考答案:B 答案解析:[听力原文] W: Would you like to go mountain climbing with us this Sunday M: That’s the last thing