Su Hu is ripe, and the proverb of the world s feet reflects

The area around Taihu Lake is full of developed agricultural production.

Suhu is ripe, the world is full" This proverb has been circulating since the Southern Song Dynasty, and the source can be found in books such as "Shameful Manuscript - Ning Guofu Persuasion of Agricultural Literature".

Su refers to Suzhou, the area of present-day Wuxian County, Jiangsu, east of Taihu Lake. Lake refers to Huzhou, the area of Wuxing, Zhejiang, south of Taihu Lake. The Taihu Lake Basin, with flat terrain, fertile land, and small rivers all over the place, is called "the water town of Zeguo".

From the period of Gaozong of the Song Dynasty to the period of Xiaozong of the Song Dynasty (1127-1189), the water conservancy in the Taihu Lake area was built, and in the north of Kunshan and Changshu, the estuary was opened to guide the water of the lake into the river and the sea. During the time of filial piety, at the outlet of Taihu Lake, a gate was set up to regulate the amount of water. The lake is low, and the polder bank is built high to resist the wind and waves.

Due to the dredging of water conservancy, serious flooding has been eliminated, and the low and high fields can be irrigated to the fullest. In addition, the agricultural production technology here is advanced, the farmers are deeply cultivated, "ploughing without waste polders (ruins), mowing (harvesting) without leaving ridges", using the latest agricultural tools "flail" threshing, so that the Suhu area has become a high-yield agricultural area in the Southern Song Dynasty, the crops are cropped twice a year, and the yield per mu of the field reaches five or six stones, so it is called "Suhu is ripe, the world is full".

Jiangsu and Zhejiang regions are rich places in the south of the Yangtze River, this sentence means that as long as there is a bumper harvest in Suzhou and Huzhou, everyone in the world can eat enough, and the proverb reflects that this area is very rich.

(2014 Yichang) After the middle and late Tang Dynasty, the economic center of gravity began to move southward, and finally formed a situation of "the foundation of the country, looking up to the southeast", and the era of completing the southward shift of the economic center of gravity was the Song Dynasty.

2015 Yichang) The proverb "Suhu is ripe, the world is full" reflects the changes in the southward shift of China's economic center of gravity. The southward shift of the economic center of gravity was finally completed during the Southern Song Dynasty. From the mid-to-late Tang Dynasty, the economic center of gravity shifted southward, and the Southern Song Dynasty was finally completed, and the financial revenue of the first class at that time mainly came from the south, especially the southeast region.

The proverb "Suzhou Lake is ripe, the world is full" reflects that Suzhou and Huzhou in the Taihu Lake basin of the Song Dynasty became important granaries.

(1) The level of economic development in the south exceeds that of the north (or the economic center of gravity shifts south). It began in the middle and late Tang Dynasty and ended in the Southern Song Dynasty.

2) Reason: There are fewer wars in the south: many people from the Central Plains moved south, bringing with them advanced production technology, and the natural conditions in the south are good.

It shows that the economic center of gravity has shifted southward, and the Jiangnan region has become the national economic center of gravity.

Answer]: aa [Analysis] "Suhu is ripe, the world is full" This answer bridge manuscript proverb began to circulate in the Southern Song Dynasty, Su refers to Suzhou, now Wuxian County, Jiangsu, east of Xiaohu Lake in Taiqing. Lake refers to Huzhou, the area of Wuxing, Zhejiang, south of Taihu Lake. Therefore, the stupid choice A.

Answer]: A Analysis] "Suhu is ripe, the world is full" This proverb has been circulated since the Southern Calendar Socks Song Dynasty, Su refers to Suzhou, now Wuxian County, Jiangsu, Taihu Lake to the east. Lake refers to the lake staring at Senzhou, the area of Wuxing, Zhejiang, south of Taihu Lake. So choose A.

Answer]: A Su blindly accompanies the lake to be familiar, and the heavenly chain leaks down the foot" This proverb began to circulate in the Southern Song Dynasty, Su refers to Suzhou, the area of Wuxian County, Jiangsu Province, east of Taihu Lake. Humo refers to Huzhou, now Wuxing, Zhejiang, south of Taihu Lake. So choose A.