首页
登录
职称英语
Towards the end of June, a unique joint expedition began in the waters near
Towards the end of June, a unique joint expedition began in the waters near
游客
2024-04-16
5
管理
问题
Towards the end of June, a unique joint expedition began in the waters near Indonesia. In an area of remarkable marine diversity known as the "Coral Triangle", two vessels set sail: the American Okeanos Explorer and the Indonesian Baruna Jaya IV. Their destination was not over the horizon, but to explore the depths of the ocean.
Jane Lubchenco, administrator of America’s National Oceanic and Atmospheric Administration, says this is the first time that scientists have used a remotely operated vehicle to investigate the cold depths of Indonesia’s Sangihe Talaud region. Their remotely operated vehicle, known as Little Hercules, is working in waters as deep as 3,700 metres(2.3 miles)and as shallow as 250 metres.
By several accounts, the diversity of marine life being discovered is phenomenal. Tim Shank, of the Woods Hole Oceanographic Institution and the lead scientist on the expedition, says the team are discovering levels of large-animal diversity that rival anything found in similar habitats elsewhere on the planet.
Dr. Shank is directing the expedition from a command centre in Jakarta, the Indonesian capital. He says the team have discovered between 30 and 40 new species in the past week of diving alone.
Little Hercules is cruising over hot springs, deep-sea muds and the rocky tops of seamounts—a kind of underwater mountain that rises from the sea floor. A whole different set of corals live down here—and with them come a specialized fauna(动物群). For instance, two chirostylid crabs have been found that live their adult lives only in one particular black coral. Sea stars, crabs, shrimp and worms are found living in the limbs of these corals as birds and insects do in the branches of trees in a rainforest.
What is most intriguing is that the team are gathering evidence for the existence of a deep-ocean "Wallace Line". This is an area named after Alfred Wallace, an evolutionary biologist who noticed in the 19th century that the fauna on either side of this line were distinctly different. The line runs between Borneo and Sulawesi, and through the Lombok Strait near Bah. To the west of the line the animals are Asian and to the east of it the species are a mix of Asian and Australian.
The reason for this line is not entirely understood, says Dr. Shank, but it is thought to be related to the difficulty that species have had in crossing the deepwater under this line. Any confirmation that Wallace’s Line extends to the floor of the deep ocean itself will certainly test ideas about the evolution of the region. The mission continues until the end of August. [br] The marine life in the "Coral Triangle" can be best characterized as " ______."
选项
A、mysterious
B、remarkable
C、phenomenal
D、diversified
答案
D
解析
原文该句中的diversity表明“珊瑚大三角”的海洋生物品种繁多。第3段第1句也提到这一区域海洋生物的多样性不同寻常,因此,本题应选D。
转载请注明原文地址:https://tihaiku.com/zcyy/3557041.html
相关试题推荐
TheWesternisauniquelygenrewhichhasfoundexpressioninthemediousof
TheWesternisauniquelygenrewhichhasfoundexpressioninthemediousof
TheWesternisauniquelygenrewhichhasfoundexpressioninthemediousof
TheWesternisauniquelygenrewhichhasfoundexpressioninthemediousof
[originaltext](23)Sexinfluencesanindividual’sattitudetowardswork.Studie
[originaltext](23)Sexinfluencesanindividual’sattitudetowardswork.Studie
Thehealth-careeconomyisfilledwithunusualandevenuniqueeconomicrela
Thehealth-careeconomyisfilledwithunusualandevenuniqueeconomicrela
TowardstheendofJune,auniquejointexpeditionbeganinthewatersnear
TowardstheendofJune,auniquejointexpeditionbeganinthewatersnear
随机试题
Lifeexpectancyisrisinginmuchoftheworld.Butdoctorsareseeinganoth
Anotherperson’senthusiasmwaswhatsetmemovingtowardthesuccessIhave
[originaltext]Nomancanchangetheweather.Nobodycancontroltheweathe
Cheatingscandalshaverockedanumberofschooldistrictsacrossthecountr
消防电话系统分为单线制和多线制两种形式。
妊娠期淋病的治疗方案叙述不正确的是A.妊娠合并淋病患者加强产前检查及孕期监护
甾类药物按化学结构特点可分为A:雌甾烷类、雄甾烷类、孕甾烷类 B:雌甾烷类、胆
矫正社会工作的方法包括()。A.社会工作行政 B.个案工作 C.小组工作
根据《建设工程工程量清单计价规范》,下列费用可用暂列金额支付的有()。A.施工合
最有助于确诊感染性心内膜炎的检查是 A.血培养 B.血气分析 C.血沉
最新回复
(
0
)