巴斯德效应（Pasteur效应）是指（） A.酵解抑制有氧氧化 B.有氧氧化抑制酵解

为评价乙脑疫苗的效果，随机确定某地 1000名儿童接种该疫苗，并随访3年，结果95%的接种者未发生该病。就疫苗的效果而言，以下哪一个结论最正确

A．疫苗效果很好，因为有很高的保护率

B．疫苗效果很好，因为有很高的效果指数

C．尚不能下结论，因为没有观察未接种者

D．尚不能下结论，因为没有作假设检验

E．尚不能下结论，因为不知血清抗体滴度

对下列词语中字的解释有误的一组是一______．

A．怀古(思念)少怀大志(心里存有)襟怀(胸怀)怀瑾握瑜(胸部衣里掩着)

B．横幅(跟地面平行的)蔓草横生(纵横杂乱)横贯(地理上东西向的)横行霸道(蛮横)

C．花灯(用花或花纹装饰的)花言巧语(用来迷惑人的)火花(形状象花朵的东西)文艺之花(比喻事物的精华)

D．化冻(融化)潜移默化(变化)化解(消除)化险为夷(使变化)

The view over a valley of a tiny village with thatched (草盖的) roof cottages around a church, a drive through a narrow village street lined with thatched cottages painted pink or white, the sight over the rolling hills of a pretty collection of thatched farm buildings―these are still common sights in parts of England. Most people will agree that the thatched roof is an essential part of the attraction of the English countryside.

Thatching is in fact the oldest of all the building crafts（工艺）practised in the British Isles. Although thatch has always been used for cottage and farm buildings, it was once used for castles and churches, too.　　

Thatching is a solitary（独自的）craft, which often runs in families. The craft of thatching as it is practised toady has changed very little since the Middle Ages. Over 800 full-time thatchers are employed in England and Wales today, keeping and renewing the old roofs as well as thatching newer houses. Many property owners choose thatch not only for its beauty but because they know it will keep them cool in summer and warm in winter.

In fact, if we look at developing countries, over half the world lives under thatch, but they all do it in different ways. People in developing countries are often unwilling to go back to traditional materials and would prefer modern buildings. However, they may lack the money to allow them to get the necessary materials. Their temporary mud huts with thatched roofs of wild grasses often only last six months. Thatch which has been done the British way lasts from twenty to sixty years, and is an effective defiance against the heat.

小题1:Which of the following remains a special feature of the English countryside?

A．Narrow streets lined with pink or white houses.

B．Rolling hills with pretty farm buildings.

C．Cottages with thatched roofs.

D．Churches with cottages around them.小题2:What do we know about thatching as a craft?

A．It is a collective activity.

B．It is practised on farms all over England.

C．It is quite different from what it used to be.

D．It is in most cases handed down among family members.小题3:Thatched houses are still preferred because of _________.

A．their style and comfort

B．their durability

C．their easy maintenance

D．their cheap and ready-made materials小题4:People in developing countries also live under thatch because ________.

A．thatched cottages are a big tourist attraction

B．thatched roof houses are the cheapest

C．thatch is an effective defense against the heat

D．they like thatched houses better than other buildings

移动脊柱骨折的伤员，切勿扶持伤者走动，可用软担架运送。

矿井生产系统由（）生产系统和（）生产系统所组成。