We can infer from the passage that
A．no definite conclusion has been reached yet.
B．the author is very certain about the location of the site.
C．Paititi is the first site they have found in Peru.
D．Paititi was built by the Inca.

判断题对于新建公路，用路基临界高度来确定路基干湿类型。()

未分类题拟发行上市公司的改制重组应遵循以下()原则。

未分类题According to the text, which of the following is true?A．The newly discovered site is the ancient 'lost city' of Paititi.B．Paititi has been attracting many explorers since it is an excellent tourist resort.C．The newfound site will be proposed as a place of interest.D．The location of the site is exactly in accord with the historical records.

未分类题According to Francisco, the Peruvian government officials willA．have a press conference.B．go to the newly built site.C．find where the ancient city is.D．send a group of people to probe the ruins.

判断题路基碾压中发生弹簧现象时，一般都用加大压实功的办法来解决。()

判断题加大压实功是提高路基的压实度最有有效的措施。()

未分类题The best title for the text may beA．We Can Live Longer in the 21st Century.B．Cancer Can Be Conquered Soon.C．The Final Frontier of the 21st Century.D．Scientific Breakthroughs of the 21st Century.

未分类题实质性测试有()基本类型。

判断题在排水较困难的挖方和填方路段，只须采用相应的隔离层措施即可解决问题。()

未分类题The author and his colleagues cognitive tests proved thatA．the children were more skillful in all aspects.B．the children were not the same as the apes in dealing with the material world.C．the children performed better only in social skills.D．the apes were better in the physical world.

判断题我国公路自然区划的一级区划是按自然气候、全国轮廓性、地理、地貌、各地方的年降雨量划分的。()

未分类题It can be inferred that cracking the genetic code and conquering cancer are related becauseA．the latter can be achieved based on the knowledge of the former.B．the latter can prove the existence of the former.C．the former reverses the process of the latter.D．the former generates the therapeutic viruses for the latter.

未分类题According to the passage, the aging process is a struggle betweenA．destruction and repair.B．damage and control.C．control and reverse.D．repair and reverse.

判断题护面墙除承受自重外，不能承受墙背土压力。()

未分类题The author uses the result of Gallup poll to argue thatA．the first ladies in America are respected by the whole nation.B．Rosalynn is not as good as Nancy Reagan in the 1980s.C．Gallup poll is an effective organization to collect public opinions.D．today's famous people are created for their well-knowness.