标签:水和酒精分子 相关文章
Researchers have identified a molecule that attracts an insect which carries citrus greening disease. 研究人员确认一种分子可吸引携带黄龙病病毒的昆虫。 This development is expected to help farmers control a disease that has des
The 2009 Nobel Prize in Chemistry goes to Venkatraman Ramakrishnan of the MRC Laboratory of Molecular Biology in England, Yale Universitys Thomas Steitz, and Ada Yonath of the Weizmann Institute of Science in Israel for their studies of the ribosome.
1. Senior White House officials are pinning blame for the attempted Times Square car bombing on the Pakistani Taliban. Attorney General Eric Holder says new evidence shows that Pakistani militants were intimately involved in the plot, planning it and
Federal authorities in in Minneapolis annouced the arrests of 6 people in 2 states in connection with a terrorism investigation. Officials say the youth were trying to travel to Syria and fight with militants, including the Islamic State group by any
There are calls for calm in New York City following Saturday's deadly ambush of 2 police officers. The man who killed them took his own life shortly afterwards. Fierce fighting is reported in norhtern Iraq near the Turkish border. Kurdish forces are
Can Oxygen Be Toxic? 氧气有毒吗? In order for us to live we must have oxygen, so how can it be bad for us? Today we explain how oxygen can be toxic. 氧气是我们生存所必需的,所以它怎么会对我们有害呢?今天我们来解释
A 24-hour ceasefire has collapsed in Lebanon, with fresh clashes erupting between the Lebanese army and Islamist militants. The truce had come after five days of fighting in which dozens of people were killed, in the most serious spillover of Syrias
Congress holds the first public hearing on Tuesday about the Obama administration's plans to invtervene in Syria. Secretary of State John Kerry and Defense Secretary Chuck Hagel are set to appear before the Senate Foreign Relations Committee. Former
This is AP News Minute. Wildfires are driving thousands of Californians from their homes. A fire north of Sacramento forced about 4,000 to evacuate. More than 3,000 others have evacuated from flames near Santa Barbara. Health care reform is expected
This is AP News Minute More than a dozen people are dead in Taiwan, where a passenger jet clipped a bridge and crashed into a river while taking off. Local media says more than a dozen others were hurt. Seven people were killed Tuesday night when a c
1. traditional medicine,传统医学,这里指中医。 eg:They reminded me that traditional medicine is an important component that needs to be addressed. 他们提醒我说,传统医学是必须得到解决的一个重要组成部分。 2. we
Education Minister Christopher Pyne has denied he offered to help James Ashby in his sexual harassment claim against former Speaker Peter Slipper. Mr. Ashby has told 60 Minites that Mr. Pyne offered to find him a lawyer and assured him a job and warn
There have been some major developments in the hunt for the Paris terrorists overnight. Thirteen people have been arrested including seven in Belgium. French police are searching for a man believed to be the eighth terrorist. He is 26-year-old Belgia
When we ate something sweet, for example, the brain sent signals to our pancreas, which started producing insulin that stored the sugar molecules in our cells for energy. 举例来说,当我们吃了甜的东西,大脑会发送信号给胰腺开始
Hello and Welcome to News and Reports on China Radio International. In This EditionFormer Israeli Prime Minister Ariel Sharon passed away at the age of 85. Fighting between Iraqi soldiers and al-Qaida-linked militants continues in the city of Falluja
1.The US military says it has helped quell an insurgent uprising in Baghdad's Sadr City. Those militants had been attacking Iraqi soldiers and also hit a crowded marketplace. At least 20 people have been killed in clashes around the region. 2.Zimbab
1. President Barack Obama says Don't ask, don't tell is coming to an end. Obama promised to change the policy on gays in the military during a speech to the Human Rights Campaign last night but he didn't offer a timetable. 2. Dozens of hostages have
1. Footage has emerged of Iraqi and Kurdish forces rescuing children who had fled into Sinjar Mountain to escape Islamic militants. Meantime, senior US officials say the Obama Administration has begun directly providing weapons to Kurdish forces batt
As altitude increases, atmospheric pressure decreases. This is due to Earth's gravitational pull on the air molecules in the atmosphere. The closer to the Earth's surface the stronger the force exerted on these molecules. 随着高度上升,大气压
The US and Russia have signed a memorandum of understanding to minimize the risk of theiraircraft coming into accidental contact in the skies above Syria. It comes after severalinstances in which the US accused Russia of unsafe and unprofessional con