检查痰液中结核分枝杆菌最常用的染色法是抗酸染色。()

非处方药广告宣传的主要对象是（）。

A.医师

B.药厂

C.药品经营部门

D.医院药房

E.消费者

提出原子结构行星模型的科学家是（　　）

A．卢瑟福

B．道尔顿

C．阿伏加德罗

D．钱永健

人生的意义，需要从（）的角度进行审视和评价。

A.人生目的

B.人生态度

C.人生价值

D.人生贡献

In country after country, talk of nonsmoker’s right is in the air. While a majority of countries have taken little (51) no action yet, some 30 nations have introduced legislated steps to control smoking. Many laws have been introduced in other countries to (52) clear the air for nonsmokers, or to cut cigarette consumption.

Smoking is harmful (53) the health of people. World governments should conduct serious campaigns against it. (54) on cigarette advertisements, plus health warnings on packages and ban on public smoking in certain places, (55) as theaters, cinemas and restaurants, are the most popular tools used by nations in (56) of nonsmokers or in controlling smoking. But world attention is also focusing on another step (57) will make the smoker increasingly self-conscious and uncomfortable about his habit. Great efforts should be made to (58) young people especially of the dreadful consequences of taking up the habit. And cigarette price should be raised.

In the long run, (59) is no doubt that everybody would be much better-off if smoking were banned altogether but many people are not (60) for such drastic action.

59().

A.that 

B.this 

C.there 

D.here

煤气检测的作用是什么？