Climate change is the greatest challenge facing humanity: drastic reduction of carbon emis

The author mentions "maths students" as an example to show______.

A．its significance in the study

B．an inherent pattern being learnt

C．its resemblance to the lights

D．the importance of night"s sleep

Towards the issue, what the author is most concerned about will be______.

A．to advocate radically reforming government policies

B．to take into account the benefits upon retirement

C．to put in practice what Hudson researchers believe in

D．to prolong the practicability of older experienced employees

When mentioning "the ongoing stock market on Wall Street" , the author______.

A．is calling attention to the privileges to which baby-boomers are entitled

B．is calling for the government to take countermeasures against labor shortage

C．is refuting a notion about experienced workers" early retirement

D．is justifying the ineffectiveness of federal tax and benefit policies

U. S. court restrictions on affirmative action signifies that______.

A．minorities no longer hold the once favored status

B．the quality of American colleges has improved

C．racial preferences has replaced racial prejudice

D．the minority is on an equal footing with the majority

【C20】

A．condition

B．situation

C．matter

D．case

【C19】

A．at

B．by

C．in

D．to

【C18】

A．And

B．But

C．Yet

D．Still

【C17】

A．as

B．so

C．while

D．when

【C16】

A．dropped

B．declined

C．lifted

D．climbed

【C15】

A．Comparing with

B．In comparison

C．Compared with

D．Compare to