RO 新题回忆 一
Roads of rails called Wagonways were being used in Germany as early as 1550.
These primitive railed roads consisted of wooden rails over which horse-drawn wagons or carts moved with greater ease than over dirt roads.
In 1813 The ‘Puffing Billy’ was built by William Hedley to pull coal wagons at the Wylam Colliery in Northumberland.
- Engineers are much needed to develop greener technologies, he says.
- “The energy sector has a fantastic skills shortage at all levels, both now and looming over it for the next 10 years,” he says.
- “Not only are there some good career opportunities, but there’s a lot of money going into the research side, too.
- With the pressures of climate change and the energy gap, in the last few years funding from the research councils has probably doubled.”
- Education scholars generally agree that mayors can help failing districts, but they are starting to utter warnings.
- Last summer the editors of the Harvard Educational Review warned that mayoral control can reduce parents’ influence on schools.
- And they pointed to Mr Bloomberg’s aggressive style as an example of what not to do.
- All this must be weighed up by the New York state legislature in 2009, when mayoral control is up for renewal—or scrapping.
In the early years of piano construction, keys were commonly made from sugar pine.
Today they are usually made of spruce or basswood.
Spruce is typically used in high-quality pianos.
Black keys were traditionally made of ebony, and the white keys were covered with strips of ivory.
However, since ivory-yielding species are now endangered and protected by treaty, makers use plastics almost exclusively.
Also, ivory tends to chip more easily than plastic.
- Immigration is always an political issue at presents day
- It is widely discussed in press and media
- But it is historically…
- By contrast, migration effect ….
- 然后会copy behavior
Canada carbon dioxide price,
Motivation of employee
- Manger should make their work done through employees
- However, 说起来容易做起来难。
- Manage should achieve that by motivating employees
- Motivation 是一个什么的process 然后讲了一个什么principle
The town of Liberal
- The town of Liberal is said to have been named for an early settler famous among travellers for being free with drinking water.
- Liberal is conservative in a moderate Midwestern kind of way which is changing fast due to big National Beef Packing plant which relies on Hispanic migrants and thus four-fifths of the children in Liberal’s public-school system are Hispanic.
- This should make the town receptive to Democrats, but Mr Trump easily won the county of which it forms part.
- Liberal’s mayor, Joe Denoyer, who was raised in a Democratic family near Chicago and moved to Liberal in search of work.
- Mr Denoyer voted for Mr Trump by being impressed by his promise, though he thinks it unlikely that the president will keep his promises.
Fibres suitable for clothing have been made for the first time from the wheat protein gluten.
The fibres are as strong and soft as wool and silk, but up to 30 times cheaper. Narenda Reddy and Yiqi Yang, who produced the fibres at the University of Nebraska in Lincoln, say that because they are biodegradable they might be used in biomedical applications such as surgical sutures.
After five years and $6 billion in development, plus months of delay, Microsoft finally launched its Vista operating system on 30 January.
Vista includes software for better handling of audio and video files, and for searching and sorting digital images.
It has home and business versions, as well as a premium version called Vista Ultimate, which allows people to use video rather than still images as wallpaper on their PCs.
– as long as human start cropping, they try to prevent their harvest.
-4,500 years ago, XX used sulphur as the pesticide
-start the first pesticide, we have all kinds of to kill insects improve efficiency
-every dollar invest now on pesticides can generate XX
-whatever the idea of the progress or the future? I agree both
-according the definition, sustainable development means 保护这代人的需求，不损害下一代人的需求
-this definition make we think the old idea of development is not good?