在400米环形跑道上，A、B两点相距100米（如右图)。甲、乙两人分别从A、B两点同时出发，按逆时

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.

What conclusion can we draw from the last paragraph of this passage？

A．Law enforcement is necessary for artistic expression.

B．Law enforcement is necessary for freedom of enjoyment.

C．Law enforcement is necessary for banning the obscene.

D．Law enforcement is necessary for the First Amendment to the U.S. Constitution.

What conclusion can we draw from the last paragraph of this passage？

A．Law enforcement is necessary for artistic expression.

B．Law enforcement is necessary for freedom of enjoyment.

C．Law enforcement is necessary for banning the obscene.

D．Law enforcement is necessary for the First Amendment to the U.S. Constitution.

We can draw a conclusion from the first paragraph that ______.

A．computer industry used to be led by the chief executive officer of IBM

B．people then underestimated the value of computers

C．humans are limited to making any predictions

D．in 1950 computer industry developed into a business applied almost in every aspect of American lives

A．secretly and vigorously

B．openly and enthusiastically

C．easily and momentarily

D．verbally and spiritually

A．secretly and vigorously

B．openly and enthusiastically

C．easily and momentarily

D．verbally and spiritually

The conclusion can be made from the third paragraph that______.

A．the Ministry of Defence detailed 24 SBS troopers

B．the fat salaries by the private military companies have worked to some SF troopers

C．the present system for retaining hard-bitten veterans is impeccable

D．20 years of service underlies a full pension

From the last paragraph we can draw the conclusion that______.

A．Oxford won the Boat Race

B．Cambridge won the Boat Race

C．the Boat Race ended in a tie

D．the Boat Race was cancelled