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【单选题】

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.
【C1】

A.
snow
B.
air
C.
gas
D.
rain
题目标签:雪松铁杉
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举一反三

【单选题】针对雪松、水松、银杏等树木,采取( )种整形方式。

A.
自然式
B.
人工式
C.
自然与人工混合式
D.
以上方式都可行

【单选题】调查是科学探究常用的方法之一。某兴趣小组调查发现校园有柳树、雪松、月季、蚂蚁、麻雀、蜜蜂、葫芦藓、蘑菇等生物。下列有关阐述正确的是[ ]

A.
葫芦藓、蘑菇都利用孢子繁殖,属于孢子植物
B.
葫芦藓具有根、茎、叶的分化,能够真正适应陆地生活
C.
月季与柳树的共同特征比月季与雪松的共同特征多
D.
按形态结构分,柳树、雪松、月季、葫芦藓、蘑菇属于植物