[考试指导有的放矢谈谈我的托福考前准备]如今参加托福考试的人越来越多,似乎成为了二十一世纪的流行事物。所以这里就简单谈谈托福考试的备考方法。这些基本上是我自己的一些实际经验,并不具有型,也不见得适合每个考生...+阅读
Astronauts take out the trash
Astronauts on Sunday exchanged supplies for trash that has accumulated on the international space station since shuttles were grounded after the 2003 Columbia tragedy. They also prepared for a second spacewalk set for Monday.
Space shuttle Discovery, which docked at the orbiting outpost Thursday, became the first shuttle to return to orbit last week. Among the mission's goals: Resupply the station and remove the mounds of trash that he accumulated in recent years.
"It is kind of just like working in your closets and your garage," station flight director Mark Ferring said. "It's a lot of work."
The astronauts are unloading 15 tons of cargo. They expect to return to Earth with 13 tons of trash and other items that are no longer needed on the station.
When the station's two-man crew awoke Sunday, they were told that their seven Discovery guests would remain at the station for an additional day.
"Hopefully it is not going to be like the relatives who miss their flight and he to stay another day," Charles Hobaugh, who works in the station's mission control, told crew members by radio.
A ninth day at the station was approved late Saturday, days after NASA decided to ground future shuttle missions because an almost one-pound piece of foam broke free of Discovery's external fuel tank. The piece of foam missed Discovery, but was a haunting reminder of Columbia.
A 1.67 pound chunk of foam shed from Columbia's external tank hit the shuttle's left wing and caused a hole that allowed the searing gases of re-entry to melt the wing from the inside out. The shuttle disintegrated over Texas as it returned to Florida. All seven astronauts died.
NASA spent hundreds of millions of dollars over 2{ years redesigning the external tank, but said last week it did not solve the problem and more work is needed.
Bill Gerstenmaier, the station's program manager, said Discovery will lee the station in much better shape than when it arrived. Water will be left behind, as well as laptops, wash cloths, a printer, dry wipes, floppy disks, food and nitrogen.
"We are going to be in very good shape through the end of the year," Gerstenmaier said.
Shuttles are needed for the supplying and continued construction of the station.
以下为关联文档:
全国计算机等级考试一级MSOFFICE上机考试指导二Windows 2000题的操作(一) 考题类型根据历次考试的情况,Windows 2000的上机考试要熟练掌握以下6种基本操作:(1)建立文件夹操作;(2)文件复制操作;(3)文件及文件夹的删除操作...
考试指导初级词汇表das Abenteuer, = 冒险 das Aber, opl. 异议;困难 das Abitur, e 中学毕业考试(毕业证) das Alter, = 年龄,年纪 das Arbeitsamt, :er 雇主 das Asthma, opl. 气喘 das Ausland,...
2006年度全国考试指导之托业阅读模拟文三Police suspect racial motive in Liverpool ax killing A black teenager who was followed through a park by a group of men shouting racist taunts died Saturday aft...
2006年度全国考试指导之托业阅读模拟文五Massive weapons cache seized in Afghanistan Thousands of rockets, mortars and anti-aircraft ammunition he been seized in central Afghanistan in the largest cach...
考试指导之托业阅读是托业(TOEIC)考试一大难点,很多考生在阅读上失手。其主要存在以下几个难点:单词、句子阅读、阅读速度和考生主观臆断。针对这些问题本人谈谈自己的备考经验。 一、单词:准...
考试指导托福就是基础英语功对于TWE,ETS策略很简单:就是让考生多练习,否则它也会象高考一样,根本不公布什么TOPIC。所以只要你把这些TOPIC简单分为三到五类,然后选其中10-30个TOPIC练习一下,TWE上5分根本没问...
2006年度全国考试指导之托业阅读模拟文二NHL's Crosby era begins as Penguins draft phenom first OTTAWA — It was Sidney Crosby's draft, and yet it was clearly the Americans' day when the NHL officially...
2006年度全国考试指导之托业阅读模拟文四Formerly conjoined twins doing well One year after a neurosurgeon separated them by cutting through a section of brain, Carl Aguirre says "Wow!" as he whizzes a...
2006年职业资格托业考试指导之考试完全攻略有个好友最近语法做的总是没有头绪,我很为他着急,于是就写个粗略的总结。我想很多T友 在做语法题的时候也是不得要领,所以我将自己的总结贴出来与大家分享,本人绝不是什么 牛人,...