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Man has become master of the Earth’s surface. He is constantly probing into
Man has become master of the Earth’s surface. He is constantly probing into
游客
2025-03-20
6
管理
问题
Man has become master of the Earth’s surface. He is constantly probing into the earth’s depths and into atmosphere’s upper reaches.【C1】______ it is doubtful whether man, with all of his intelligence and vigor, holds his planetary seat with greater【C2】______ than a vast tribe of small, many-legged animals that pass their lives at his feet—the spiders.
Spiders are among the【C3】______ of science. They dwell at higher altitudes than any other【C4】______ of their size or larger. On the slopes of Mount Everest, at an altitude of twenty-two thousand feet—five thousand feet above the vegetation line—【C5】______ a species of black spider only a quarter of an inch long. This is an【C6】______ environment for creatures so delicately constructed. To protect themselves from the chill of night, they take shelter in crevices where the twenty-four-hour【C7】______ in temperature is only twelve degrees, as against forty-four on the outside.
Spiders live in other unlikely【C8】______ —rabbit burrows, flowers, anthills, and the desolate, drafty aeries of eagles. They have been found soaring through the air five miles【C9】______ the earth. One【C10】______ has been discovered in an African cavern more than two thousand feet underground. [br] 【C1】
选项
A、Then
B、Yet
C、So
D、And
答案
B
解析
本句相对于上两句而言,意思明显发生转折,因此需要填入一个表示转折关系的连接词,B项Yet(然而)是正确答案。A项Then表示顺序,C项So表示因果关系,D项And表示同一意思的延续,用在此处都不合适。
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