对先天性红细胞缺乏G-6-PD的患者可引起急性溶血性贫血的药物：A．伯氨喹 B．氨苯

根据我国目前的条件，大中城市住宅一般以（）层为主。

A.1～3

B.3～6

C.5～6

D.5～9

什么时候确立国共合作方针？

阅读理解

                                                          Obama still smokes in secret

    US President Barack Obama may have just made life more difficult for cigarette smokers, but he still

smokes every now and then in secret.

     Obama, who has publicly struggled to quit smoking, said he still hasn't completely kicked the habit

even after signing a law this week that will set tough new rules for the tobacco industry.

     "As a former smoker I constantly struggle with it. Have I fallen off the wagon sometimes?  Yes. Am

I a daily smoker, a constant smoker? No," Obama said at a news conference.

     " I don't do it in front of my kids, I don't do it in front of my family. I would say that I am 95 percent

cured, but there are times where I mess up," he said.

    The new law gives the US Food and Drug Administration the power to strictly limit the making and

marketing of tobacco products.

     At a White House signing ceremony Monday, Obama said he was among the nearly 90 percent of

smokers who took up the habit before their 18th birthday.

     " Once you go down this path it's something you continually struggle with, which is exactly why the

law we signed is so important because what we don't want is kids going down that path in the first place," he said at the news conference.

      Nearly 20 percent of Americans smoke and tobacco use kills about 440,000 people a year in the

United States due to cancer, heart disease, and other serious diseases.

1. According to the passage, Obama _________.

A. has no plan to give up smoking    

B. still smokes as usual

C. no longer smokes              

D. hasn't completely given up smoking

2. What does the underlined sentence mean in the third paragraph?

A. Have I dropped from the wagon?  

B. Have I stopped smoking completely?

C. Do I still smoke sometimes?      

D. Do I still smoke as much as before?

3. Which of the following is Not TRUE?

A. Nearly 90 percent of the population of America smoke.

B. Nearly 90 percent of the smokers of America began to smoke before they turned 18.

C. Nearly one-fifth of Americans smoke.

D. Smoking kills about 440,000 people a year in the USA.

4. The new law first looks at _________ health.

A. adults'    

B. middle-aged people's  

C. women's  

D. children's

找国法定计量单位中，属于国家选定的非国际单位制单位是（）。

A.平面角，弧度

B.压力，帕

C.体积，升

D.质量，千克

E.长度，厘米

下列物质中（）为最典型的未完全燃烧产物。

A.H₂0

B.CO

C.C0₂

D.HCN