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【单选题】

Passage One
Just over three years old and about four-feet tall. Methuselah is growing well. "It’s lovely." Dr. Sarah Sallon said of the date palm,whose parents may have provided food for the besieged Jews at Masada some 2 000 years ago. The little tree was sprouted in 2005 from a seed recovered from Masada, where rebelling Jews committed suicide rather than surrender to Roman attackers.
Radiocarbon dating of seed fragments clinging to its root, as well as other seeds found with it that didn’t sprout, indicate they were about 2 000 years old—the oldest seed known to have been sprouted and grown.
Sallon, director of the Louis L. Borick Natural Medicine Research Center at Hadassah Medical Organization in Israel, updates the saga of Methuselah in Friday’s edition of the journal Science.
One thing they don’t know yet is whether it’s a boy or girl. Date palms differ by , but experts can’t tell the difference until the tree is six or seven years old, Sallon said.
She hopes there’s a chance to use it to restore the extinct Judean date palm, once prized not only for its fruit but also for medicinal uses.
The researchers have had a look at the plant’s DNA, however, and found it shares just over half its genes with modern date cultivars(栽培品种).
"Part of our project is to preserve ancient knowledge of how plants were used," Sallon said in a telephone interview. "To domesticate them so we have a ready source of raw material. "
Her Middle Eastern Medicinal Plant Project is working to conserve and reintroduce plants to the region where they once lived.
"Many species are enered and becoming extinct. Raising the dead is very difficult, so it’s better to preserve them before they become extinct," she said.
The oldest documented seed to be grown previously was a 1 300-year-old lotus, Sallon said.
The purpose of the passage is to ______

A.
enlarge our knowledge of the plants
B.
provide latest information on plant usage
C.
introduce a successful project concerning a plant
D.
emphasize the importance of rare plant preservation
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参考答案:
举一反三

【单选题】Just over three years old and about four-feet tall. Methuselah is growing well. "It’s lovely." Dr. Sarah Sallon said of the date palm,whose parents may have provided food for the besieged Jews at Masa...

A.
the attempt to grow the Judean palm date will end in failure
B.
the effort to reintroduce the Judean palm date is sure to pay off
C.
the researchers are likely to create a new species of the Judean palm date
D.
the researchers stand a chance of success to renew the Judean palm date

【单选题】Passage One Just over three years old and about four-feet tall. Methuselah is growing well. "It’s lovely." Dr. Sarah Sallon said of the date palm,whose parents may have provided fo...

A.
It will be made clear within a year or two.
B.
It will remain a myth for at least a decade.
C.
It won’t be known until several years later.
D.
It won’t be decided without ancient knowledge.

【单选题】Passage One Just over three years old and about four-feet tall. Methuselah is growing well. "It’s lovely." Dr. Sarah Sallon said of the date palm,whose parents may have provided fo...

A.
the attempt to grow the Judean palm date will end in failure
B.
the effort to reintroduce the Judean palm date is sure to pay off
C.
the researchers are likely to create a new species of the Judean palm date
D.
the researchers stand a chance of success to renew the Judean palm date

【单选题】Just over three years old and about four-feet tall. Methuselah is growing well. "It’s lovely." Dr. Sarah Sallon said of the date palm,whose parents may have provided food for the besieged Jews at Masa...

A.
enlarge our knowledge of the plants
B.
provide latest information on plant usage
C.
introduce a successful project concerning a plant
D.
emphasize the importance of rare plant preservation

【多选题】栽培品种具有()特性。

A.
经济性、商品性
B.
时效性
C.
地域性
D.
生产性

【单选题】Just over three years old and about four-feet tall. Methuselah is growing well. "It’s lovely." Dr. Sarah Sallon said of the date palm,whose parents may have provided food for the besieged Jews at Masa...

A.
It will be made clear within a year or two.
B.
It will remain a myth for at least a decade.
C.
It won’t be known until several years later.
D.
It won’t be decided without ancient knowledge.

【单选题】Passage One Just over three years old and about four-feet tall. Methuselah is growing well. "It’s lovely." Dr. Sarah Sallon said of the date palm,whose parents may have provided fo...

A.
enlarge our knowledge of the plants
B.
provide latest information on plant usage
C.
introduce a successful project concerning a plant
D.
emphasize the importance of rare plant preservation
相关题目:
【单选题】Just over three years old and about four-feet tall. Methuselah is growing well. "It’s lovely." Dr. Sarah Sallon said of the date palm,whose parents may have provided food for the besieged Jews at Masa...
A.
the attempt to grow the Judean palm date will end in failure
B.
the effort to reintroduce the Judean palm date is sure to pay off
C.
the researchers are likely to create a new species of the Judean palm date
D.
the researchers stand a chance of success to renew the Judean palm date
【单选题】Passage One Just over three years old and about four-feet tall. Methuselah is growing well. "It’s lovely." Dr. Sarah Sallon said of the date palm,whose parents may have provided fo...
A.
It will be made clear within a year or two.
B.
It will remain a myth for at least a decade.
C.
It won’t be known until several years later.
D.
It won’t be decided without ancient knowledge.
【单选题】Passage One Just over three years old and about four-feet tall. Methuselah is growing well. "It’s lovely." Dr. Sarah Sallon said of the date palm,whose parents may have provided fo...
A.
the attempt to grow the Judean palm date will end in failure
B.
the effort to reintroduce the Judean palm date is sure to pay off
C.
the researchers are likely to create a new species of the Judean palm date
D.
the researchers stand a chance of success to renew the Judean palm date
【单选题】Just over three years old and about four-feet tall. Methuselah is growing well. "It’s lovely." Dr. Sarah Sallon said of the date palm,whose parents may have provided food for the besieged Jews at Masa...
A.
enlarge our knowledge of the plants
B.
provide latest information on plant usage
C.
introduce a successful project concerning a plant
D.
emphasize the importance of rare plant preservation
【多选题】栽培品种具有()特性。
A.
经济性、商品性
B.
时效性
C.
地域性
D.
生产性
【单选题】Just over three years old and about four-feet tall. Methuselah is growing well. "It’s lovely." Dr. Sarah Sallon said of the date palm,whose parents may have provided food for the besieged Jews at Masa...
A.
It will be made clear within a year or two.
B.
It will remain a myth for at least a decade.
C.
It won’t be known until several years later.
D.
It won’t be decided without ancient knowledge.
【单选题】Passage One Just over three years old and about four-feet tall. Methuselah is growing well. "It’s lovely." Dr. Sarah Sallon said of the date palm,whose parents may have provided fo...
A.
enlarge our knowledge of the plants
B.
provide latest information on plant usage
C.
introduce a successful project concerning a plant
D.
emphasize the importance of rare plant preservation
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