The underlined word "They"(Line 1, Para.2) refers to __________.

A.human activities could not continue

B.there could not be weather forecasting systems

C.many activities would have to change their present form

D.banks would not be able to go on with check clearing

A.After re-training, all employees in the firm get new jobs.

B.A considerable proportion of people are employed in key posts,

C.The firrn keeps all of its original staff members.

D.The decrease in staff members may be balanced by the increase of firm activities.

A.doubtful

B.regretful

C.unfriendly

D.supportive

A.not a mental process

B.more of a physical process than a mental action

C.a process that involves our entire bodies

D.a process that involves the muscles as well as the brain

A.both are mental acts

B.muscles participate in both processes

C.both processes are performed by the entire body

D.we derive equal enjoyment from them

A.moving some part of their body

B.stopping what they are doing to listen

C.directing the orchestra playing it

D.wishing that they could conduct music properly

A.the unnoticed motion of his muscles

B."participating" in the performance

C.bending an ear to the music

D.being the conductor of the orchestra

A.Deliberate

B.Apparent

C.indistinct

D.impressive

A.women do as much work as men

B.people think women are weaker than men

C.sport is easier for men than for women

D.in sport the two sexes are always together

A.Boys and girls study separately everywhere.

B.Women do not run or swim in races with men.

C.Famous Prime Ministers are women.

D.Men can expect to live longer than women in Europe.