美国有线新闻 CNN 科学家在南极发现地球陆地最低点（在线收听）

What body of water is located along the border between Israel and Jordan? The Dead Sea, The Sea of Galilee, The Gulf of Aqaba, of the Red Sea. It's the salty Dead Sea that's between Israel and Jordon and it has the lowest elevation on Earth's surface.

And though researchers say they found a place that's considerably lower than that, setting a new record for the deepest point on land. You can't really visit it and you can't really even see it. The Denman Glacier is located in Eastern Antarctica. Glaciologists at the University of California were ma?pping it out using new technology. They were combining radar measurements, satellite information, and snow accumulation data and they say this allowed them to locate a valley that's hidden underneath the ice sheet.

The trough is reportedly about 62 miles long and 12 and a half miles wide but here's the kicker —it's deep. Researchers say it plunges two miles below sea level which it would make it more than a mile deeper than the bottom of the Dead Sea. Of course, the ocean's deepest trenches are much lower than this. But what we're talking about is the lowest point on land. And the Antarctic trough apparently has no ocean water. Scientists say it's filled with ice that flows toward the Antarctic coast. They're hopeful that their research will help scientists study the continent for decades to come.

下列哪个水域位于以色列和约旦边界？死海、加利利海、亚喀巴湾还是红海？含盐的死海位于以色列与约旦之间，是地球表面海拔最低点。

虽然研究人员表示，他们发现了一个海拔大幅低于死海的地方，创造了陆地最低点的新纪录。但是大家并不能去那里游览，你们甚至看不到那里。登曼冰川位于南极洲东部。加州大学的冰河学家利用新技术将该冰川绘制出来。他们将雷达测量、卫星资料和积雪数据相结合，这使他们得以确定隐藏在冰川之下的峡谷的位置。

据报道，这个峡谷约62英里长，12.5英里宽，但关键的是——它很深。研究人员表示，该峡谷比海平面低2英里，这使其比死海海底还要低1英里多。当然，海洋最深的海沟要比这一深度低很多。但我们现在说的是陆地上的最低点。显然，这个南极峡谷内没有海水。科学家表示，该峡谷内全是向南极海岸方向运动的浮冰。他们希望他们的研究能在未来几十年帮助科学家研究南极大陆。