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  3. British Columbia has greater variations in climate than any other province in Ca

British Columbia has greater variations in climate than any other province in Ca

游客2023-07-31  44
问题 British Columbia has greater variations in climate than any other province in Canada. When warm winds from the west hit the cold【C1】______ of the many mountain ranges, the result is heavy rainfall. Inland plateaus, however, are largely【C2】______ On the lower coast, the temperature is mild, with little【C3】______ any snow. In the northern belt, temperatures range from 50° below zero to 90° above zero. This area has more rain and snow. The forests of British Columbia【C4】______ about one hundred million acres. The【C5】______ of many mountain ranges are blanketed with【C6】______ . Red cedar(雪松), and hemlock (铁杉) are found in large【C7】______ .
    While lumber is the most important industry for British Columbia, its【C8】______ also supply large revenues, particularly in the southern areas. Cod and salmon are the most abundant【C9】______ of commercial value. There are many kinds of【C10】______ . Goats and sheep axe found in the mountains, and moose and deer in the valleys and woods.【C11】______ this wildlife is a source of food and other valuable products, trap- pets caught and killed large numbers of these animals with no【C12】______ to preserve the supply. As a re- suit, the government has had to regulate trapping and has introduced fur farming. These【C13】______ have been successful. Consequently, the supply of wildlife has been【C14】______ . British Columbia does not【C15】______ only upon its natural resources to provide employment. In Vancouver, many【C16】______ plants employ large numbers of workers. Large industrial plants make【C17】______ and aluminum. Smaller factories turn out a variety of products. In recent years, there has been a marked【C18】______ in livestock (家畜)raising. In addition, poultry(家禽) and eggs. as well as fruits and vegetables, are important products in the【C19】______ areas southeast of Vancouver. Manufactured and agricultural products are【C20】______ by rail to Canada’s eastern regions. [br] 【C11】
选项 A、Since
B、However
C、Ever since
D、if
答案 A
解析 本句上下文是因果关系，而however，ever since和if都不能表达这种关系，而since可以表明因果关系，所以选A)
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