21040017现行的DE值的标准为（）。

A:15≤DE≤20 B:16≤DE≤20 C:17≤DE≤20 D:16≤DE≤22

法国葡萄酒的质量等级可以分为：Vins de Table、Vins de Pays、（）。

A:Vins deTable B:DOCDO（C）Vins de Pays C:Vins de Pays D:VDQS、AOC

Steamships were first introduced into the United States in 1807, and John Moison built the first steamship in Canada(then called British North America)in 1809. By the 1830s dozens of steam vessels were in use in Canada. They offered the traveler reliable transportation in comfortable facilities--a welcome alternative to stagecoach travel which at the best of times could only be described as wretched. This commitment to dependable river transport became entrenched with the investment of millions of dollars for the improvement of waterways, which included the construction of canals and lock systems. The Lachine and Welland Canals, two of the most important systems, were opened in 1825 and 1829, respectively. By the time that Upper and Lower Canada were united into the Province of Canada in 1841 ,the public debt for canals was more than one hundred dollars per capita, an enormous sum for the time. But it may not seem such a great amount if we consider that improvements allowed steamboats to remain practical for most commercial transport in Canada until the mid-nineteenth century.

A:To contrast travel by steamship and stagecoach. B:To criticize the level of public debt in nineteenth century in Canada. C:To describe the introduction of steamships in Canada. D:To show how Canada surpassed the United States in transportation improvements.

British Columbia is a province in the western half of Canada. It is the largest province in the western half of Canada, but two other provinces are larger.
The weather in the southern half of British Columbia is mild. In fact, it is the mildest in Canada. For this reason, many older people come to live in this area of Canada.
There are about three and a half million people living in British Columbia. Only Ontario and Quebec have more people, about half of British Columbia’s people originally came from England. Many other people’s families came to Canada from Scotland, Ireland, and Germany. Today this province has a higher percentage of Asians than any of the Other nine provinces.
Vancouver is the largest city in British Columbia. Many international visitors come to Vancouver. They come to see the natural beauty of the coast and the beautiful mountains. Many ships stop at Vancouver, and it is the largest port in all of Canada.
Vancouver is ______.

A:the capital of British Columbia B:the largest city in British Columbia C:in the western half of Canada D:both A and B

Passage Three
Today the official language of the United States and most of Canada is English. However, French almost became the official language because of a war.
The French and Indian War was fought between 1754 and 1763. The name of this war is not accurate because the war was actually between England and France. The Indians fought on the side of the French.
France and England were trying to gain control of North America. France held Canada, and England held part of what is now the United States. However, France tried to expand its land by moving southward into New York, Pennsylvania, Ohio, and Virginia. When the French built a fort on the Ohio River, the residents in Virginia sent George Washington to attack the fort in 1754. How ever, the French defeated Washington.
The French, aided by the Indians, outsmarted the English and won many early battles. Later, the British began to do well against the French. In the final battle in Quebec, Canada, General Wolfe of England faced General Montcalm from France. Both generals died in this battle, but the English outlasted the French and won the battle. Thus, most of North America today has the English culture and language.

A:England B:France C:Canada D:Virginia

Passage Four

A:the capital of British Columbia B:the largest city in British Columbia C:in the western half of Canada D:both A and B

Passage Three Today the official language of the United States and most of Canada is English. However, French almost became the official language because of a war. The French and Indian War was fought between 1754 and 1763. The name of this war is not accurate because the war was actually between England and France. The Indians fought on the side of the French. France and England were trying to gain control of North America. France held Canada, and England held part of what is now the United States. However, France tried to expand its land by moving southward into New York, Pennsylvania, Ohio, and Virginia. When the French built a fort on the Ohio River, the residents in Virginia sent George Washington to attack the fort in 1754. How ever, the French defeated Washington. The French, aided by the Indians, outsmarted the English and won many early battles. Later, the British began to do well against the French. In the final battle in Quebec, Canada, General Wolfe of England faced General Montcalm from France. Both generals died in this battle, but the English outlasted the French and won the battle. Thus, most of North America today has the English culture and language.

A:England B:France C:Canada D:Virginia