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The 100-metre race .—Dad, when will you be free? You agreed to go to the seaside with me four days ago.

解析： B 。 four-day 作复合形容词，修饰名词 holiday ，表示"四天的假期"。

This is the 25th come to China, coming last time is two years ago.

这是第25次来中国，上一次来是两年前。

However, another private equity fund manager in Shanghai, then there is some truth, he said:"Ruanjie was just a 'battalion commander or a platoon leader', led small-scale capital charge can play, but all of a sudden to do ' Commander of the Corps' booth is too large to adapt certainly can not, and he was placed themselves do not need short-term strengths, to learn is not good at long-term holdings, the doomed lost long ago."

但是，另一位私募基金经理，在上海，则有一定的道理，他说："Ruanjie只是一个'营长或排长'，导致小规模的资本费用可以发挥，但突然做'该军团司令摊位太大，无法适应当然，他把自己不需要的短期优势，学习是不是长期持有，是注定要失去很久以前好。"

The Chinese were a highly civilized people thousands years ago.

早在几千年前，中华民族就是一个高度文明的民族。

I saw it a couple of days ago.

我几天前看过它。

I am 24 years old , I lost my father a couple of years ago.

我24岁，我失去了我的父亲数年前。

This year, Amsterdam is competing with Salzburg, where Mozart was born 250 years ago, and Aix-en-Provence, where Cézanne died a century ago.

今年，阿姆斯特丹要与莫扎特250年前的诞生地——萨尔茨保和塞尚100年前的去世之地——埃克斯昂普罗旺斯竞争。

This year, Amsterdam is competing with Salzburg, where Mozart was born 250 years ago, and Aix-en-Provence, where C zanne died a century ago.

今年，阿姆斯特丹要与莫扎特出生地萨尔茨保和塞尚的安息地艾萨恩省竞争。该两地分别举办莫扎特诞生250周年和塞尚逝世100周年纪念。

Bernadette who died 122 years ago in Lourdes, France and was buried; her body was only discovered 30 years ago..

她的丈夫若瑟因是义人，不愿公开羞辱她，有意暗暗地休退她。

Bernadette who died 122 years ago in lourdes,France and was buried, her body was only discovered 30 years ago after the church officials decided to examine her body.

直到30年前教堂的主事们决定检验她的尸体她才被发现。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。