A group of scientists in labs spread across Europe,the U.S.and Nepal have been working on Qomolangma "remotely".The project's goal is to turn the world's highest mountain into a huge climate laboratory.
During April and May last year,a team of more than 30 biologists,glaciologists,geologists,meteorologists,and geographers fanned out across Qomolangma's southern side,conducting fieldwork high on the mountain. "We believe the best way to get a full scientific picture of Qomolangma is not just to do one kind of science," says Paul Mayewski of the University of Maine,the leader of the effort.
Each individual study promises a unique picture of the mountain's climate—past,present,and future.Ice cores will allow scientists to go back in time—tens,hundreds and perhaps thousands of years to learn about the environment.Snow and water samples give a look at what's happening on the mountain,today,including the future of the glaciers.The team also fixed a network of automated weather stations,which will document upcoming weather trends for years to come.
One of the hardest tasks fell to Mayewski's colleague Mariusz Potoeki,who hoped to drill ice cores at several places on the mountain,including the South Col（25，938 feet） and the top of Qomolangma（29，035 feet）.The job required a specially designed drill system powered by batteries,and an excellent team to figure out how to prevent the cores from becoming liquid during their long journey back to the University of Maine's laboratory for analysis.
Potocki abandoned his summit attempt due to the crowds of normal climbers.To his relief,Potocki succeeded in taking the highest ice core ever recovered,at just above Camp Four—26，312 feet above sea level. "The ice doesn't lie." Mayewski says. "The very idea that the highest part of the planet hasn't been spared from human activity ought to be a real wake-up call for everybody."



Which way does Paul Mayewski suggest to fully study Qomolangma？ ______

A. Working on it remotely in labs.
B. Teaming up with more countries.
C. Doing many kinds of science.
D. Turning it into a real lab.

Why does the team analyze ice cores？ ______

A. To document upcoming weather change.
B. To get a unique picture of climate trends.
C. To know more about the past environment.
D. To predict the future of the mountain.

What difficulty did Mariusz Potocki face？ ______

A. Improving the special drill system.
B. Drilling the oldest ice cores at some places.
C. Conducting fieldwork above Camp Four.
D. Delivering frozen ice cores to the lab.

What can we infer from the last paragraph？ ______

A. Potocki got ice cores at 29，035 feet.
B. Human activity has affected Qomolangma.
C. Ice cores can serve as a warning for us.
D. Normal climbers helped with Potocki's work.