[不定项选择题]根据下面资料，回答题 They may have lived some 1,700 years ago, but the ancient Maya had an incredible knowledge of celestial bodies, which they believed influenced everything. Now a 15-year-old boy has studied astronomical charts devised by these ancient Mexican people, as well as satellite photos, to pinpoint the location of a forgotten Mayan city. William Gadoury, from Quebec has named the "lost city" in the Yucatan jungle K′aak Chi, or Mouth of Fire. Satellite images suggest the lost city could be among the largest built by the ancient civilisation, which thrived between 300 and 700 A D. Wondering why the ancient people built their cities far away from rivers and in inhospitable mountains prompted the teenager to look to the sky for answers. Incredibly, the brightest of the stars matched the largest cities. "I was really surprised and excited when I realised that the most brilliant stars of the constellations matched the largest Maya cities." He told The Journal of Montreal. He is said to be the first to make the connection, which could lead to further finds. It was in the 23rd constellation, containing three stars, that he found two matching cities on the map, suggesting one has not yet been re-discovered. To investigate further, he used satellite images from the Canadian Space Agency and Google Earth to search the dense jungle for any signs of buildings. The photographs revealed linear features that "stuck out," Daniel De Lisle, from the Canadian Space Agency told The Independent. "There are linear features that would suggest there is something underneath that big canopy," he said. Armand La Rocque, from the University of New Brunswick believes one of the images shows network of streets leading to a large square, which may be a pyramid. "A square is not natural, it is mostly artificial and can hardly be attributed to natural phenomena," he said. It′s possible 30 buildings accompany an impressive pyramid at the site. If true, the lost city would be one of the five largest known to archaeologists, built by the Mayans. Linking the position of stars and the location of a lost city and the use of satellite images on a tiny territory to identify the remains buried under dense vegetation, is quite exceptional. Dr. La Rocque thinks William Gadoury′s technique could lead archaeologists to pinpointing the location of more possible lost Mayan metropolises. What is the general tone of the author in this passage 查看材料
A.Dogmatic.
B.Persuasive.
C.Impersonal.
D.Ironic.

[不定项选择题]根据下面资料，回答题 They may have lived some 1,700 years ago, but the ancient Maya had an incredible knowledge of celestial bodies, which they believed influenced everything. Now a 15-year-old boy has studied astronomical charts devised by these ancient Mexican people, as well as satellite photos, to pinpoint the location of a forgotten Mayan city. William Gadoury, from Quebec has named the "lost city" in the Yucatan jungle K′aak Chi, or Mouth of Fire. Satellite images suggest the lost city could be among the largest built by the ancient civilisation, which thrived between 300 and 700 A D. Wondering why the ancient people built their cities far away from rivers and in inhospitable mountains prompted the teenager to look to the sky for answers. Incredibly, the brightest of the stars matched the largest cities. "I was really surprised and excited when I realised that the most brilliant stars of the constellations matched the largest Maya cities." He told The Journal of Montreal. He is said to be the first to make the connection, which could lead to further finds. It was in the 23rd constellation, containing three stars, that he found two matching cities on the map, suggesting one has not yet been re-discovered. To investigate further, he used satellite images from the Canadian Space Agency and Google Earth to search the dense jungle for any signs of buildings. The photographs revealed linear features that "stuck out," Daniel De Lisle, from the Canadian Space Agency told The Independent. "There are linear features that would suggest there is something underneath that big canopy," he said. Armand La Rocque, from the University of New Brunswick believes one of the images shows network of streets leading to a large square, which may be a pyramid. "A square is not natural, it is mostly artificial and can hardly be attributed to natural phenomena," he said. It′s possible 30 buildings accompany an impressive pyramid at the site. If true, the lost city would be one of the five largest known to archaeologists, built by the Mayans. Linking the position of stars and the location of a lost city and the use of satellite images on a tiny territory to identify the remains buried under dense vegetation, is quite exceptional. Dr. La Rocque thinks William Gadoury′s technique could lead archaeologists to pinpointing the location of more possible lost Mayan metropolises. Dr. La Rocque believes that ___________.查看材料
A.more Mayan cities could be found near rivers
B.generally pyramid are surrounded by many buildings
C.a square could be attributed to natural phenomena
D.more Mayan metropolises could be found later by William' s technique

[不定项选择题]共用题干 Robots May Allow Surgery in Space

Small robots designed by University of Nebraska researchers may allow doctors on
Earth to help perlorm surgery on patients in space.
The tiny,wheeled robots,_________(1)are about 3 inches tall and as wide as a
lipstick case, can be slipped into small incisions（切口）and computer-controlled by
surgeons in different locations.Some robots are equipped_________(2)cameras and
lights and can send images back to surgeons and others have surgical tools attached that
can be_________(3)remotely.
"We think this is going to_________(4)open surgery,"Dr. Dmitry Oleynikov said
at a news conference.Oleynikov is a_________(5)in computer-assisted surgery at
the University of Nebraska Medical Center in Omaha.
Officials hope that NASA will teach_________(6)to use the robots soon enough so
that surgeries could one day be performed in space.
On earth,the surgeons could control the robots themselves_________(7)other
locations.For example,the robots could enable surgeons in other places to_________
(8)on injured soldiers on the front line.Researchers plan to seek federal regulatory
_________(9)early next year.Tests on animals have been successful,and tests on
humans in England will begin very soon.
The camera-carrying robots can provide_________(10)of affected areas and the
ones with surgical tools will be able to maneuver（操控）inside the body in ways surgeons'
hands can't.The views from the camera-carrying robots are_________(11)than the
naked eye,because they_________(12)back color images that are magnified（放大）.
Because several robots can be inserted through one incision,they could reduce the amount
and_________(13)of cuts needed for surgery,which would decrease recovery time.
This is particularly_________( 14) to those patients who have been debilitated（使虚弱）
by long illness.
Eventually,Oleynikov said,the tiny robots may enable surgeons to work without ever
_________(15)their hands in patients' bodies."That's the goal,"Oleynikov said."It's
getting easier and easier.We can do even more with these devices." _________(15)
A.touching
B.pressing
C.holding
D.placing