2020年軍隊文職考試考試：巧記同比與環(huán)比
同比和環(huán)比是資料分析中常見的兩種增長方式，很多同學對于這兩種增長方式了解和掌握并不好，以至于如果題目中同時出現(xiàn)同比和環(huán)比時候容易混淆，找不到正確的數(shù)據(jù)，導致題目做錯，接下來，紅師教育就帶大家來仔細甄別一下這兩種增長方式。 一、概念 同比：與最大的時間概念向過去循環(huán)一個周期做比較。 環(huán)比：與最小的時間概念向過去循環(huán)一個周期做比較。 舉例：2017年12月 在這個時間概念里，出現(xiàn)了兩個時間概念，分別為年和月，根據(jù)常識，我們知道較大的時間概念為年，較小的時間概念為月，所以，同比就是把較大的時間概念2017年向前循環(huán)一個周期即為2016年，即2017年12月的同比為2016年12月;對于環(huán)比來講，較小時間概念12月，向前循環(huán)一個周期為11月，所以2017年12月的環(huán)比為2017年11月。
接下來，通過一個表格讓考生對同比和環(huán)比。 二、同比和環(huán)比的表述形式 同比：2012年稅收收入100601億元，同比增長. 2012年稅收收入100601億元，增長了. 2012年稅收收入比2011年增長了. 2012年稅收收入100601億元，比上年同期增長了. 環(huán)比：2013年3月稅收收入80203億元，環(huán)比增長了. 2013年3月稅收收入為80283億元，比上月增長了. 例.2016年12月，全規(guī)模以上工業(yè)實現(xiàn)產(chǎn)值億元，同比增長，比上月增長了。 (1)2015年12月全規(guī)模以上工業(yè)實現(xiàn)產(chǎn)值多少億元? (2)2016年11月全過規(guī)模以上工業(yè)實現(xiàn)產(chǎn)值多少億元?
解放軍文職招聘考試熱水比冷水結(jié)冰快的現(xiàn)象-解放軍文職人員招聘-軍隊文職考試-紅師教育
發(fā)布時間：2017-06-29 22:29:01Warm water freezes more quickly than cold water. Sir Francis Bacon said that almost four hundred years ago. But few people believed himuntil 1970. In that year a Canadian scientist George Kill proved the English professor was right. Dr Kill filled an open oil pail(桶) with cold water. He filled another with warm water. He put both in the same low temperature. The warm water froze first. The lack of covers on the pails is the secret. Some of the warm water changed into vapor. This meant that less of the warm water was left to be frozen. And so the warm water froze faster than the cold water even though it had a greater temperature drop to make.1. Hundreds of years ago, Sir Francis Bacon found _______.A. the temperature of warm water drops faster than that of cold waterB. warm water is heavier than cold waterC. warm water has the same temperature as cold waterD. warm water is not as useful as cold water2. What Sir Francis Bacon said was right, but people didn"t believe him until _______.A. late in the 20th century B. early in the 20th centuryC. three years ago D. late in the 19th century3. Leave a pail with warm water and another pail with cold water in the same low temperature, you ll find that _______.A. cold water freezes firstB. warm water turns into ice before cold waterC. warm water and cold water freeze at the same timeD. much of cold water is changed into air.4. Why does warm water freeze first in the same freezing weather?A. Because some of the warm water turns to vapor, the amount(數(shù)量) becomes less than that of cold water.B. Because warm water is lighter than cold water.C. Because the temperature of warm water is lower than that of cold water.D. Because cold water freezes with more difficulty than warm water.1.A。細節(jié)題。據(jù)第1句和第2句可知答案為A。2.A。細節(jié)題。根據(jù) But few people believe him until 1970可知答案為A。4.A。推斷題。根據(jù) Some of the warm water changed into vapor. This meant that less of the warm water was left to be frozen可知答案為 A。
