问题
单项选择题
在时间序列的水平分析中，报告期水平与前一期水平的差是()。
A.累计增长量
B.逐期增长量
C.平均增长量
D.定基增长量
答案
参考答案：B
解析：考点： 增长量、平均增长量的计算及它们之间的关系
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在时间序列的水平分析中，报告期水平与前一期水平的差是()。
A.累计增长量
B.逐期增长量
C.平均增长量
D.定基增长量
参考答案：B
解析：考点： 增长量、平均增长量的计算及它们之间的关系
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| A woman I know stood on the bathroom scales (浴室磅秤) after two weeks of diet and hard exercise around the park. The needle was 1 , stuck on the number where she had started. This struck her as 2 of how things had been going lately. She was destined (注定) never to be happy. As she dressed, feeling her tight jeans, she 3 a ten-pound note in her pocket. Then her sister phoned with a 4 story. When she hurried out to the car-annoyed that she had to get petrol-she discovered her flat mate had already 5 the tank for her. And this was a woman who thought she'd 6 be happy. Every day, it seems, we're 7 with advice about happiness. The cruel message is that there's something we' re supposed to do to be 8 (make the right choices, or have the right set of beliefs about ourselves.) Coupled with this is the 9 that happiness is a permanent condition. If we are not joyful all the time, we 10 there's a problem. Yet what most people 11 is not a permanent state of happiness. It is something more ordinary, a 12 of what the American writer Hugh Prather once called "unsettled problem, ambiguous 13 and vague (不明确的) defeats with few moments of clear peace." Maybe you wouldn't say yesterday was a happy day, 14 , you had a quarrel with your boss. But weren't there moments of happiness, moments of 15 ? Now that you think about it. 16 , there a letter from an old friend, or a stranger who asked where you got such a good haircut? You remember having a bad day, yet those good moments 17 . So in my opinion, happiness is an 18 , not a condition. It's spending a pleasant hour organizing your closet. It is your family assembled at dinner. It's in the present not in the 19 promise of a "someday when…". How luckier we are and how much more happiness we experience-if we can fall in love with the life we are 20 . | ||||
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