“十一五”时期我国高速公路建设的总体任务是（)。 A．基本建成国家高速公路网B．基本形成

A．15 minutes or less

B．between 15 and 30 minutes

C．between 30 and 45 minutes

D．1 hour or more

A．15 minutes or less

B．between 15 and 30 minutes

C．between 30 and 60 minutes

D．1 hour or more

As can be gathered from the passage, Kosovo ______.

A．is one of the six republics

B．is part of Serbia

C．is autonomous

D．borders on Serbia

A．15 minutes or less

B．between 15 and 30 minutes

C．between 30 and 60 minutes

D．1 hour or more

As can be gathered from the passage, Kosovo______.

A．is one of the six republics

B．is part of Serbia

C．is autonomous

D．borders on Serbia

As can be gathered from the passage, Kosovo ______

A．is one of the six republics

B．is part of Serbia

C．is autonomous

D．borders on Serbia

A．15 minutes or less

B．between 15 and 30 minutes

C．between 30 and 45 minutes

D．1 hour or more

It can be inferred from the passage that before the Industrial Revolution ______.

A．families were larger

B．population statistics were unreliable

C．the population grew steadily

D．economic conditions were bad

From the passage we know that ______.

A．virus scanners can identify a virus even if they don't have a signature for it

B．one of the weaknesses of the virus scanners is that they can't detect a known virus before it is executed

C．self mutating viruses which infect a file in a different way each time, can't be identified by a simple pattern search and therefore make the scanners ineffective

D．because virus scanners identify a virus by name, they can indicate only where on the hard driver infection has occurred

What can be inferred from the passage？

[A] 11 percent of boys in America smoke before their fourth grade.

[B] Nicotine is a part of cigarette.

[C] Children form. values in the fourth grade.

[D] Parents who cannot stop smoking should force their children to stay away from it.