单词：lignins
[化] 木质素; 木素
n. a complex polymer; the chief constituent of wood other than carbohydrates; binds to cellulose fibers to harden and strengthen cell walls of plants
单词：lignins 相关文章
This is Scientific American's 60-Second Science. I'm Adam Hinterthuer. This will just take a minute. Youve probably chased a fly or two around the house this summer. And, chances are, it took a few swings before you brought down the buzzing nuisance.
Scientific American(八)月
内脏神经系统 Visceral Nervous System abdominal aortic plexus 腹主动脉丛 aorticorenal ganglion 主动脉肾神经节 autonomic nervous system 自主神经系统 cardiac plexus 心丛 celiac ganglia 腹腔神经节 celiac plexus 腹腔丛 cervicothoracic ganglion 颈胸神经节
医学英语
Ephesians 以弗所书_Eph_5 1Be imitators of God, therefore, as dearly loved children 2and live a life of love, just as Christ loved us and gave himself up for us as a fragrant offering and sacrifice to God. 3But among you there must not be even a hint
以弗所书
Ephesians 以弗所书_Eph_3 1For this reason I, Paul, the prisoner of Christ Jesus for the sake of you Gentiles-- 2Surely you have heard about the administration of God's grace that was given to me for you, 3that is, the mystery made known to me by rev
以弗所书
Ephesians 以弗所书_Eph_2 1As for you, you were dead in your transgressions and sins, 2in which you used to live when you followed the ways of this world and of the ruler of the kingdom of the air, the spirit who is now at work in those who are disob
以弗所书
The Venezuelan economy is in free fall, with soaring inflation and severe shortages of food, water, and medicine. Political opponents of the regime of Nicolas Maduro reportedly have been subjected to imprisonment and torture. Faced with such misery,
VOA标准英语2018年(七月)
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有声畅销书-秘密
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有声畅销书-秘密
Elizabeth Barrett Browning (1806 - 1861) What was he doing, the great god Pan, Down in the reeds by the river? Spreading ruin and scattering ban, Splashing and paddling with hoofs of a goat, And breaking the golden lilies afloat With the dragon-fly
英语诗歌
The United States has announced new sanctions on three Venezuelans and 20 companies for connections to drug trafficking. Vice President Mike Pence announced the measures earlier this week. He spoke during a visit to the headquarters of the Organizati
2018年VOA慢速英语(五)月
Insatiable Darren Hayes When moonlight crawls along the street Chasing away the summer heat Footsteps outside somewhere below. The world revolves. I let it go We build our church above this street We practice love between these sheets The candy sweet
英语金曲精听
By Brian Wagner Caracas 28 May 2007 Venezuela's replacement of a popular opposition television station with a new state-backed network drew fierce criticism that President Hugo Chavez is curtailing democratic freedoms. Demonstrators, including univer
2007年VOA标准英语（五月）
By Michael Bowman Caracas 28 June 2007 Venezuelan President Hugo Chavez continues to accuse the United States of plotting to invade his country, as he engages in a whirlwind trip to Russia, Belarus and Iran. VOA's Michael Bowman reports from Caracas
2007年VOA标准英语（六月）
Zambians go to the polls Thursday to elect a new president following the death in August of Levy Mwanawasa who had won two elections and served six years in office. VOA's Delia Robertson reports from our southern Africa bureau in Johannesburg. There
VOA标准英语2008年（十月）
By Nico Colombant Dakar 15 January 2007 As residents of Liberia's war-torn capital Monrovia prepare to mark the first year of power for President Ellen Johnson-Sirleaf, the mood remains one of general praise and hope for Africa's first elected femal
2007年VOA标准英语（一月）
By Michael Bowman Caracas 05 December 2006 Venezuela remains abuzz after Sunday's re-election victory by socialist President Hugo Chavez over an opposition candidate who was barely known in the country just a few months ago. VOA's Michael Bowman rep
2006年VOA标准英语（十二月）
The palm oil industry is growing in Central America. And in Guatemala, the product has become a major export. Supporters say the industry creates jobs and investment in areas where poverty and violence have led to waves of migration. However, critics
2019年VOA慢速英语(一)月
CARACAS, March 6 (Xinhua) -- Tens of thousands of Venezuelan mourners took to the streets of Caracas Wednesday, as the coffin carrying the body of late President Hugo Chavez proceeded through the city. The funeral march starts from the Military Hospi
英语新闻
PARIS, France Algeria is kicking off its 50th anniversary of independence from France Thursday with a series of year-long celebrations. But many Algerians and French are marking the event with mixed emotions. Algeria's 50th independence anniversary b
英语新闻
Giving the Seedligns a Hand A man of the state of Song was worried about his seedlingsgrowing too slowly He pulled up the seedlings one by one and went home exhausted．I am tired out today．I helped the seedlings to grow，he said to his family．H
趣味英语