An increasing number of museums tend to charge admission fees from tourists rather than providing service free of charge. Do you think the advantages outweigh the disadvantages？

A、an increasing number of free electrons

B、a decreasing number of free electrons

C、lower conduction levels

D、relatively unchanged conduction conduction levels

paragraph 5__________．

A．causes of changes

B．increasing number of museums and visitors

C．museums getting closer to more spectators

D．movies shown in museums

E．new notions about the management of museums

F．places to visit

A．great in number and most will vote

B．great in number but few tend to vote

C．few in number and few tend to vote

D．few in number but most will vote

The number of people believing in religion (be) ______ increasing in China.

(A number) of these (who) (study) engineering is increasing (steadily).

A．A number

B．who

C．study

D．steadily

A．He will find out the right number for you.

B．He will charge you less for the wrong number.

C．He will charge you no money for the wrong number.

D．He will tell you what the wrong number is.

A telephone user may pay a fixed monthly charge and (allow) ______ to make an unlimited number of local calls in the month.

A．You can see many cheerful pictures in children's museums.

B．In 1991, visits to museums were the highest.

C．More and more new children's museums are available in the world.

D．The number of people visiting children's museums has increased sharply.