________ of minerals, which are chemical elements or compounds of varying purity .

A．The consistency of rocks　 B． Rocks, consisting

C．Rocks consist　　　D． Whereas rocks consist

Sandra Day O扖onnor, the first woman member of the United States Supreme Court, believed that the courts should interpret the law ______ legislate.

[　　]

A．than attempt to repair　 B． rather than attempt to

C．to attempt rather than　 D． attempt rather than to

________, some of the Earth抯 interior heat escapes to the surface.

A．A volcano erupts　　　B． A volcano whether erupts　

C．A volcano erupts it　 D． If a volcano erupts

Sarah France Whiting opened the ______ on physics in the United States in 1878.

[　　]

A. undergraduate teaching was in a second laboratory

B. second teaching laboratory of undergraduate

C. undergraduate teaching laboratory was second

D. second undergraduate teaching laboratory

_____ angles of any triangle always add up to 180 degrees.

[　　]

A． If three　 B． The three　 C． Three of　 D． Three are

He _____ his head against the railings when he was running up the stairs .

[　　]

A． beat　B． hit　 C． shot　 D． aimed at

Woman: If that truck parks there, it will block the driveway. I have to back out now.

Man: I抣l ask the driver to park in the street.

Question: What is the woman concerned about?

[　　]

A.That she will be able to get her car out of the driveway.

B.That her car will be in the way of the truck.

C.That the truck is blocking her view of the park.

D.That her car will be damaged if she parts on the street.

Both nickel and iron are whitish metals _______.

[　　]

A． that are attracted by magnets

B． that magnets are attracted by them

C． attracted by magnets

D． magnets that attract them

Pansies can be cultivated easily in home gardens, but _____ plenty of water and not too much sun.

[　　]

A． to require　B． they require　 C． required　 D． requiring

In business, success not only depends on what one says but often on how _______.

[　　]

A． one says it　B． is it said　C． to be saying　D． does one say