logo - 刷刷题
下载APP
【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 (67) of the many mountain ranges, the result is heavy rainfall. Inland plateaus, however, are largely (68) On the lower coast, the temperature is mild, with little (69) 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 (70) about one hundred million acres. The (71) of many mountain ranges are blanketed with (72) . Red cedar(雪松), and hemlock (铁杉) are found in large (73) .
While lumber is the most important industry for British Columbia, its (74) also supply large revenues, particularly in the southern areas. Cod and salmon are the most abundant (75) of commercial value. There are many kinds of (76) . Goats and sheep axe found in the mountains, and moose and deer in the valleys and woods. (77) this wildlife is a source of food and other valuable products, trap- pets caught and killed large numbers of these animals with no (78) to preserve the supply. As a re- suit, the government has had to regulate trapping and has introduced fur farming. These (79) have been successful. Consequently, the supply of wildlife has been (80) . British Columbia does not (81) only upon its natural resources to provide employment. In Vancouver, many (82) plants employ large numbers of workers. Large industrial plants make (83) and aluminum. Smaller factories turn out a variety of products. In recent years, there has been a marked (84) in livestock (家畜)raising. In addition, poultry(家禽) and eggs. as well as fruits and vegetables, are important products in the (85) areas southeast of Vancouver. Manufactured and agricultural products are (86) by rail to Canada’s eastern regions.

A.
Since
B.
However
C.
Ever since
D.
if
题目标签:雪松铁杉
举报
参考答案:
参考解析:
.
刷刷题刷刷变学霸
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