首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
专升本
Scientists used to explore【31】the surface of the ocean. Now they【32】below the surface, too. They want to know about the ocean wa
Scientists used to explore【31】the surface of the ocean. Now they【32】below the surface, too. They want to know about the ocean wa
admin
2007-12-11
94
问题
Scientists used to explore【31】the surface of the ocean. Now they【32】below the surface, too. They want to know about the ocean water and the【33】and animal life【34】in the ocean.
In 1934 the scientist William Beebe dived 3 , 000 feet below the surface in a hollow steel ball. In 1935 Auguste Piccard dived 10, 330 feet. In 1960 his son Jean dived to a【35】of 35, 800 feet.
All these early dives were deep. But the divers could not stay down for very long. They had to【36】the surface after a few seconds. Scientists needed to stay down longer to study life below the surface.【37】, they succeeded. Cousteau, a Frenchman, was able to【38】down to a depth of【36】feet for one month and to a depth of 90 feet for a week.
Now scientists are developing even【39】equipment. With this new equipment, men can stay【40】the surface for days or【41】weeks. In 1962 Consteau【42】a research station 35 feet below the surface. Then in 1964 he set up another station on the ocean floor of the Red Sea. This was the first undersea station to operate【43】help from the surface.
Many countries are now studying undersea【44】. The Soviet Union has an undersea laboratory in the Crimean Sea. The United States has a laboratory 50 feet【45】on the ocean floor【46】the Virgin Islands. In 1970 five men lived there for two weeks. Then a【47】of five women scientists stayed in the laboratory.【48】came other teams of men. All were there to explore the ocean depths and【49】plans for the use of its resources. Scientists hope to find enough【50】, vegetable, and animal wealth there to provide food for the whole world.
选项
A、good
B、well
C、better
D、more
答案
C
解析
转载请注明原文地址:https://kaotiyun.com/show/BBLC777K
本试题收录于:
英语题库普高专升本分类
0
英语
普高专升本
相关试题推荐
Haveyou【B1】______askedyourselfwhychildrengotoschool?Youwillprobablysaythattheygo【B2】______theirownlanguagea
Haveyou【B1】______askedyourselfwhychildrengotoschool?Youwillprobablysaythattheygo【B2】______theirownlanguagea
Haveyou【B1】______askedyourselfwhychildrengotoschool?Youwillprobablysaythattheygo【B2】______theirownlanguagea
Thefirstatomicbomb______.What’stheattitudescientiststowardatomicbomb?______.
Scientistsdiscoveredthatatomsofsomesubstancesareradioactive.Thismeansthattheyareunstableandcanbesplit.Thecha
Scientistsusedtoexplore【31】thesurfaceoftheocean.Nowthey【32】belowthesurface,too.Theywanttoknowabouttheoceanwa
Scientistsusedtoexplore【31】thesurfaceoftheocean.Nowthey【32】belowthesurface,too.Theywanttoknowabouttheoceanwa
Scientistsusedtoexplore【31】thesurfaceoftheocean.Nowthey【32】belowthesurface,too.Theywanttoknowabouttheoceanwa
随机试题
若无穷级数收敛于S.则无穷级数(un+1+un)收敛于()
Word中,可以把表格整体左对齐显示。()
A.洗胃B.手术切除C.饮蛋清及稀释牛奶D.多潘立酮急性腐蚀性胃炎应采用
绿脓杆菌感染,首选的抗菌药物是
A、凹面+小斜面B、肩台+小斜面C、刃状D、凹面E、直角肩台铸造全冠边缘强度最差的预备体边缘形式是
建设工程项目进度计划系统各进度计划或各子系统进度计划编制和调整时必须注意()。
乳酸(CH3CHOHC02H)()
请给这幅漫画起一个名字。
下列关于我国国土资源的叙述,正确的是()。
[*]
最新回复
(
0
)