A useful expression is slipping into the list of key translations used by nonsmoking world

travelers: Don't puff(喷烟) on me.

In country after country, talk of nonsmokers' rights is in the air. This fresh voice is heard from Australia to Sweden. Its force is freeing clean air for nonsmokers -- and tightening the situation for smokers.

While a majority of countries have taken little or no action yet, some 30 nations have introduced legislative steps to control smoking abuse. Many laws have been introduced in other countries to help clear the air for nonsmokers, or to cut cigarette consumption.

In many developing nations, however, cigarette smoking is seen as a sign of economic progress -- and is even encouraged. While it appears that in developed countries the consumption of cigarettes has become stabilized, there are some indications that it is still rising at a steady pace in Latin America.

Despite progress in segregating (分开) nonsmokers and smokers, most countries see little change in the number of smokers. In fact, there is a jump in the number of girls and young women starting to smoke.

So far, any cooperation between tobacco interests and governments' campaigns against smoking has been in the area of tobacco advertising.

Restrictions on cigarette ads, plus health warnings on packages and bans on public smoking in certain places, are the most popular tools used by nations in support of nonsmokers or in curbing (抑制) smoking.

But world attention also is focusing on other steps which will:

-- Prevent pro-smoking scenes on TV and films.

-- Remove cigarette vending machines.

-- Make it illegal to sell or hand over tobacco products to minors.

-- Boost cigarette prices with higher tobacco taxes.

When you are traveling around the world, you will find that ______.

A．the topic of nonsmokers' rights is a hot issue for discussion

B．the expression "Don't puff on me" is posted everywhere

C．few countries pay attention to nonsmokers' rights

D．smokers are forced to give up smoking to keep the air clean