单项选择题：火焰原子吸收光度法测定水中总铬时，加入NH4C.I可以增加火焰中的（）起到助熔作用。

题型：单项选择题

Donna Simpson weighs more than 600 pounds and aims to reach 1，000 pounds．The New Jersey woman is carrying a series of activities to become the world’s fattest living woman，admitting that she is as hungry for attention as she is for calorie-rich food．

Donna，who wears XXXXXXXL dresses, eats pounds of junk food and tries to move as little as possible．The 42-year-old woman is a model on a website，where admirers and the curious can pay to watch videos of her eating food or walking to the car．She appeared in TV interviews and

said she welcomed media coverage．

Simpson has submitted a claim to the Guinness World Records for the title of the world’s heaviest woman to give birth．Among the heaviest women ever recorded was one who reportedly weighed 1，800 pounds and another who reportedly weighed 1,200 pounds at the time of their

deaths．

You might expect her husband to advise her to lose weight，but it is the other way round．To achieve her goal，Donna says she will need to eat up to 12，000 calories a day，compared to 2000 calories that a normal woman needs．

When she came across the website which made very fat women widely known，she came to know there were many women faced with the same problems．And after she admitted her real size，e-mails from people poured in．They sent her gifts through the post，expressing their care

for her．Donna was not feeling sorry for her goal，though she might risk her own life in the process．However, some have a different voice in Donna’s behavior．They hold that it is more important to do something useful than to become popular．After all，there are so many children faced with the shortage of food throughout the world．

小题1:. . One reason why Donna Simpson wants to be the heaviest woman is that .

A．she is fond of challenging herself

B．she wants to advertise for food

C．she is crazy about public attention

D．she hopes to make fat women confident小题2:. . We can learn from the passage that ．

A．Simpson is much fatter than any other woman

B．Simpson’s videos can be watched on the Internet

C．Simpson has broken the Guinness World Record

D．Simpson’s husband is strongly against her plan小题3:. . What can we infer from the passage?

A．Simpson will go on a diet to keep fit

B．There’s no way for one to reach 1000 pounds

C．Most people take pity on Simpson

D．Simpson will take measures to achieve her goal小题4:. . The author’s attitude towards Donna Simpson would be ．

A．negative

B．uncertain

C．encouraging

D．annoying小题5:. . What would be the best title for the passage?

A．Meet with the fattest person in the world

B．What’s the matter with Donna Simpson?

C．A US woman decided to be the world’s heaviest

D．The super-sized model planned to lose weight

查看答案

火焰原子吸收光度法测定水中总铬时，加入NH4C.I可以增加火焰中的（）起到助熔作用。

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