在空气中吸收水分的性质称为建筑装饰材料的吸水性。（)

What can we learn from the first paragraph？

A．A dolphin is a special kind of fish.

B．Dolphins can't swim very quickly.

C．Dolphins can live only in the sea.

D．Dolphins produce their babies on land.

What can we learn from the second paragraph？

A．Socrates can be regarded as the first social scientist in the western world.

B．The universities in Italy have no buildings.

C．Socrates created the "Socratic method".

D．Greece is not as civilized as Italy.

What can we learn from Paragraph 2？

A．Socrates can be regarded as the first social scientist in the Western world.

B．The universities in Italy have no buildings.

C．Socrates created the "Socratic method".

D．Greece is not as civilized as Italy.

What can we learn from the first paragraph？

A．A lot of products are designed and manufactured specifically for men.

B．It is unclear whether the Gender Knee will help its maker more successful.

C．It is clear that the Gender Knee will make its maker suffer great losses.

D．It is clear that the first artificial joint created for females represents a giant leap.

We can learn from the first paragraph that John Carey is ______.

A．a professor and beekeeper

B．a teacher, as well as a poet

C．an author and book reviewer

D．a writer, book reviewer and professor

What can we learn from the second paragraph？

A．Socrates can be regarded as the first social scientist in the western world.

B．The universities in Italy have no buildings.

C．Socrates created the "Socratic method".

D．Greece is not as civilized as Italy.

What can we learn from the first paragraph？

A．It is fairly easy to determine literacy.

B．There is no illiteracy in a rich family.

C．History sees an even progress towards literacy.

D．In history literacy suffers ups and downs.

What do we learn from the first paragraph？

A．Music training can improve the function of the brain.

B．Singers or instrument players tend to have better hearing.

C．There has been little evidence to prove the power of music.

D．Musicians are born with ability to hear targeted sound amid noise.

What can we learn from the first paragraph？

A．It is a natural tendency for people to believe that innovation is stimulated by patents.

B．The inventors cannot reap the fruits of their patents until many years later.

C．Individuals and organizations welcome competitions brought about by the patentees.

D．Patenting can never be a blessing to society if it fails to benefit people at large.

From the first paragraph, we can learn that investors confidence in German economy is .

A．weak

B．increasing

C．optimistic

D．subtle