-考呗网

英语六级

单选题

A．The effects of smoking on their DNA still exists.
B．The damage to their DNA will be cured one year later.
C．The function of their DNA has been changed.
D．The chance of having cancer is still high.

参考答案：A进入在线模考

What did Dr．Stephanie J．London say about the people who stopped smoking? A。

你可能感兴趣的试题

1Questions are based on the following passage.
There is much discussion today about whether economic growth is desirable. At an earlier period, our desire for material wealth may have been（26）. Now, however, this desire for more than we need is causing serious problems（27）Even though we have good（28）, we may be producing too much, too fast. Those who criticize economic growth argue that we must slow down. They believe that society is（29）certain limits on growth. These include the fixed supply of natural resources, the possible（30） effects of industry on the natural environment, and the continuing increase in the world's population. As society reaches these limits, economic growth can no longer continue, and the quality of life will（31）.
People who want more economic growth, on the other hand, argue that even at the present growth rate there are still many poor people in the world. These（32） of economic growth believe that only more growth can create the capital needed to improve the quality of life in the world. Furthermore, they argue that only continued growth can provide the（33） resources required to protect our natural surroundings from industrialization.
This debate over the desirability of continued economic growth is of（34）importance to business and industry. If those who argue against economic growth are Correct, the problems they mention cannot be（35）.
To find a solution, economists and the business community must pay attention to these problems and continue discussing them with one another.
A. approaching
B. constantly
C. decrease
D. enlarge
E. financial
F. fundamental
G. ignorant
H. ignored
I. intention
J. justified
K. negative
L. positive
M. proponents
N. rigidly
O. Specification
第（26）题选

点击查看答案进入在线模考

2第（27）题选

点击查看答案进入在线模考

3第（28）题选

点击查看答案进入在线模考