炉缸损坏的主要因素?

题型:问答题 简答题

问题:

炉缸损坏的主要因素?

考点:炼铁工考试炼铁原理炼铁原理题库
题型:问答题 简答题

我国《公务员暂行条例》规定:“国家行政机关按照管理权限,对国家公务员的德、能、勤、绩进行全面考核,重点考核工作实绩。”由此可见( )

A.作为公务员最重要的是工作实绩,但也不可忽视其他方面的表现

B.只要工作成绩突出,其他的都可以忽略

C.作为公务员,德最重要

D.公务员的德、能、勤、绩是同等重要的

题型:问答题 简答题

自2010年10月以来,我国北方多个省份遭遇干旱,如图2为干涸开裂的河床。在干旱地区可通过人工降雨的方法向天取水,其中一种人工降雨的方法是把干冰(固态二氧化碳)播撒到冷云中,利用干冰的   吸热使其温度降低,空气中的水蒸气迅速液化成小水滴或_______成小冰晶,导致降雨. (两空均填物态变化的名称)

题型:问答题 简答题

阅读理解。

   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's growth,"Pereira said in a statement.

   Writing in the journal Cancer Epidemiology,Biomarkers & Prevention,Pereira and his colleagues said

they followed 60,524 men and women in the Singapore Chinese Health Study for 14 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 findings would apply elsewhere.

   "Singapore is a wealthy country with excellent healthcare . 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.

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.

2.We can infer from Pereira's words that __________.

A.the healthcare in Singapore should be greatly improved

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

C.87 out of 140 volunteers developed pancreatic cancer

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

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

A.Satisfied.  

B.Doubtful.

C.Worried. 

D.Hopeful.

4.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

题型:问答题 简答题

会计核算软件中,对于拟采用的总分类会计科目的名称和编号方法,用户可以根据自己的需要进行设定。 ( )

题型:问答题 简答题

高度超过()的层次上的交叉作业,凡人员进出的通道口应设双层安全防护棚。

A.18m

B.20m

C.24m

D.28m

更多题库