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【单选题】

At the bottom of the world lies a mighty continent still wrapped in the Ice Age and, until recent times, unknown to man. It is a great land mass crisscrossed (交叉往来) by mountain ranges whose (62) and height are still uncertain. Much of the continent is a complete blank on our maps. A 1 000-mile (63) of the coastline has never been () by any ship. Man has (65) , on foot, less than one percent of its area.
Antarctica differs slightly (66) the Arctic regions. The Arctic is an ocean, covered with (67) packed ice and surrounded by the land masses of Europe, Asia, and North America. The Antarctic is a continent (68) as large as Europe and Australia (69) , centered roughly on the South Pole and surrounded by the most (70) water areas of the world—the Atlantic, Pacific and Indian Ocean.
The continental ice pack is more than two (71) high at its center; thus, the air over the Antarctic is far more refrigerated (冰冻的) than it is over the Arctic regions. This cold air falls (72) the land with such force that it (73) the nearby seas the stormiest in the world and renders (74) those regions whose (75) at the opposite end of the globe are inhabited. (76) , more than a million persons live (77) 2 000 miles of the North Pole in an area that (78) most of Alaska, Siberia, and Scandinavia—a (79) rich in forest and mining industries. Except for a handful of (80) stations, within the same distance of the South Pole there is not a(an) (81) tree, industry, or settlement.

A.
associated
B.
combined
C.
stuck
D.
adhered
题目标签:交叉冰冻
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参考答案:
参考解析:
.
刷刷题刷刷变学霸
举一反三

【单选题】燃油交叉供油的主要目的是()

A.
允许任一台发动机使用任一油箱内的燃油
B.
当抽油时,可把某一油箱的燃油抽到其它油箱里
C.
当加油时,能确保油箱内燃油达到所希望的油量
D.
以上都错

【单选题】锥体交叉

A.
锥体束纤维全部交叉
B.
在延髓下部交叉
C.
在脑桥下部交叉
D.
只有15%纤维交叉
E.
交叉后的纤维位于脊髓前正中裂两侧

【单选题】使用冰冻血浆的正确方法是

A.
置热源上加温融化后使用
B.
加入200ml蒸馏水溶解后用
C.
加入生理盐水稀释后用
D.
放在37℃温水中融化后用
E.
加入等量3.84%构橼酸钠后用

【单选题】位置觉传导束交叉在()

A.
脊髓前联合
B.
丘脑
C.
延髓
D.
小脑
E.
内囊