我国传统节日中，祭祖、扫墓的日子是（）节日？

某公司在某工业园新建两套8m²的竖炉球团项目，年产球团矿80万t。根据当地环保部门批复，项目SO₂总量为540t。竖炉球团项目生产工艺为：含铁料、膨润土按一定的配比进入烘干混匀筒烘干。烘干混匀后的混合料由φ6m圆盘给料机、给料皮带机直接向φ6m造球圆盘供料。造好的小球通过接料板落入S-1皮带机，然后进入双层圆辊筛筛分。上层为大球筛，筛上≥18mm粒级的生球，经胶带机，被送到大球破碎机破碎后进入返料系统；筛下<18mm粒级的生球进入下层筛继续筛分，筛出≤5mm粒级的生球进入返矿系统，筛上合格生球（大于5mm小于18mm）直接落入S-2胶带机上，合格的生球通过设有电子秤的皮带机转运至梭式布料机，梭式布料机再向竖炉均匀布料。合格生球在炉顶布料后进入炉体，经过干燥、预热、焙烧、均热、冷却等，再通过液压传动的齿辊卸料机、振动给料机排出炉体。竖炉烟气、竖炉排料口（链扳机头部）、成品筛分、竖炉直料管与振动给料器产生的废气（200000m³/h）经电除尘器净化后进入玻璃钢旋流板塔脱硫后由60m烟囱外排。球团返矿、电除尘器收尘送入某选厂进行选矿生产铁精矿。项目吨产品铁精砂耗量为1050kg，能源为天然气。铁精砂化学成分见表1。成品球团主要成分所占的比例：TFe≥62%、FeO≤1.0%、S≤0.045%，碱度R=0.44。竖炉球团生产为连续工作制度，四班三运转，每天三班，每班工作8h，作业天数330d。

项目所产生的烟气采用旋流板塔进行脱硫（脱硫效率为65%～90%），石灰法、双碱法，哪种方法更好？

下列哪项不是右心衰竭的临床表现（）

A.食欲下降

B.颈静脉怒张

C.肝颈静脉回流征阳性

D.早期在身体疏松部位出现水肿

E.口唇发绀

Over a hundred years ago people in London were surprised to see a very unusual boat come sailing up the Thames River.The boat was eighty feet long flat-bottomed,with big wooden eyes on both sides in the front and was colorfully painted at the back.

People came to know that it was a sailing boat from Fuzhou in distant China.The boat had sailed round the Cape of Good Hope(好望角) up the western coast of Africa,and finally to England.It had covered fifteen thousand miles—more than half of the distance round the world.

Although it was unexpected,the Chinese were warmly welcomed.The boat carried goods such as silk and tea as well as a number of gifts from the Emperor of China for the Queen of England.

People had always mistakenly thought of the Chinese as a people not used to sea.However,from centuries of trading and sailing in dangerous seas,the Chinese had learned how to build good boats and sailed them well.The coming of this sailing boat to London proved once again that the Chinese could sail to distant countries in the world.

小题1:The boat was considered unusual because _________.

A．it was a small wooden boat

B．it carried Chinese silk and tea

C．it had traveled fifteen thousand miles

D．it looked strange in several ways小题2:According to this article,which of the following is TRUE?

A．The distance round the earth measures less than thirty thousand miles.

B．The Chinese Emperor gave silk and tea to the English Queen as gifts.

C．The Chinese boat came to London by accident.

D．The Chinese people were not good at sailing in dangerous seas.小题3:The boat reached London by sailing _________.

A．round the southern end of Africa

B．up the west coast of England

C．through the Arctic Ocean

D．round Asia and Europe小题4:.The writer wants to prove that a long time ago the Chinese _________.

A．carried silk,tea and other goods to England

B．could reach many parts of the world by sea

C．could sail along the Thames River

D．surprised Londoners with an unusual boat

Zn(OH)2既能跟酸反应，也能跟碱反应，是一种两性氢氧化物。

种子的休眠、萌发与植物激素有着密切的关系。将休眠状态的糖枫种子与湿沙混合后放在0～5℃的低温下l～2个月，就可以使种子提前萌发，这种方法叫层积处理。下图表示糖枫种子在层积处理过程中各种激素含地的变化情况，请据图回答：

在早春低温时为了让水稻种子早发芽，农民常将种子置于流动的河流或溪水中浸泡一段时间，这种做法与上图中（）（激素）变化的相关性最大。