消防泵每隔（）月，（每次试运转10分钟）试运行（）次。

我国现行政府预算体系由()级预算组成。

A.二

B.三

C.四

D.五

第二部分阅读理解(共25小题。第一节每小题2分，第二节每小题l分，i满分45分)

第一节阅凑下列短文，从每题所给的四个选项(A、B、C和D)中，选出最佳选项，并在

答题卡上将该项涂黑。

A

WASHINGTON(Reuters)-People who drink two or more sweetened soft drinks a week have a much higher risk of pancreatic cancer(胰腺癌)，an unusual but deadly cancer，researchers reported on Monday．

People who drank mostly fruit juice instead of sodas did not have the same risk，the study

of 60,000 people in Singapore found．

Sugar may be to blame but people who drink sweetened sodas regularly often have other

poor health habits，said Mark Pereira of the University of Minnesota，who led the study．

“The high levels of sugar in soft drinks may be increasing the level of insulin(胰岛素)in The body,which we think contributes to pancreatic cancer cell growth,”Pereira said in a statement．

Writing in the joumal Cancer Epidemiology，Biomarkers & Prevention，Pereira and colleagues

said they followed 60,524 men and women in the Singapore Chinese Health Study for l4 years．

Over that time，140 of the volunteers developed pancreatic cancer．Those who drank two or

more sweetened soft drinks a week had an 87 percent higher risk of being among those who got

pancreatic cancer．

Pereira said he believed the fndings would apply elsewhere。

“Singapore is a wcahhy country with excellent heahhcare．Favorite pastimes(消遣)are

eating and shopping，so the findings should apply to other western countries，”he said．

But Susan Mayne of the Yale Cancer Center at Yale University in Connecticut was cautious．

“Although this study found a risk，the finding was based on a relatively small number of

cases and it remains unclear whether it is a causal(因果的)connection or not。”said Mayne．

who serves on the board of the journal，which is published by the American Association for

Cancer Research．

Pancreatic cancer is one of the deadliest forms of cancer，with 230,000 cases globally．In

the United States，37,680 people are diagnosed with pancreatic cancer in a year and 34,290 die

of it．

4 1．According to the text，who is in control of the health study?

A．Mark Pereira．               B．Scientists from Singapore．

C．Researchers in Yale．         D．Susan Mayne．

42．We can infer from Pereira,s words that__．

A．the heahhcare in Singapore should be greatly improved

B．2 soft drinks a day are considered harmful to health

C．87 out of l40 volunteers developed pancreatic cancer

D．sugar might not be the only cause of pancreatic cancer

43．How does Susan seem to feel about the findings of the study?

A．Satisfied．     B．Doubtful．     C．Worried．   D．Hopeful．

44．The best title of the text might be________．

A．The Deadliest Forms of Cancer          B．Drink Fruit Juice Instead of Sodas

C．A Study in University of Minnesota      D．Sugary Soft Drinks Lead to Cancer

在下列各说法中，正确的是

A．ΔH >0表示放热反应，ΔH <0表示吸热反应

B．1mol H₂SO₄与1mol Ba(0H)₂反应生成BaSO₄沉淀时放出的热叫做中和热

C．1mol H₂与0.5mol O₂反应放出的热就是H₂的燃烧热

D．热化学方程式中的化学计量数只表示物质的量，可以是分数

具有主脉生理功能的脏是（）

A.肝

B.心

C.脾

D.肺

E.肾

为中和胃酸保护胃黏膜宜选用（　）

A．奥美拉唑+阿莫西林+克拉霉素

B．兰索拉唑

C．硫糖铝

D．颠茄

E．甲氧氯普胺