脑血栓形成患者为（） A.情绪激动时，突然昏迷伴偏瘫 B.突然头痛、呕吐伴颈强直及脑

DIY, which means Do It Yourself, is quite popular in UK. Lots of stores and supermarkets sell DIY things. TV programmes show people how to DIY.

English people like DIY. There is a saying in UK----“As Englishman’s home is his castle”. Huge number of people spend their holidays making their homes beautiful “castles”. If there is anything that needs fixing around their homes, such as painting the walls or putting in a new shower, they will do the jobs themselves. They share DIY experience with their friends. More and more people have discovered the joy of DIY. Sometimes people also DIY for saving money. With the economic downturn at present, many people can not afford a big house. They are looking at how they can make their house better without spending a lot of money. It is not surprising that DIY is so popular.

DIY can be difficult. There is a huge market for DIY furniture which people need to get together themselves with a few basic tools. However, people often find it not easy to build a piece of furniture because they can’t understand the instructions. Sometimes the instructions are simple and clear, but the furniture itself is difficult to build. One thing is for sure, though most DIY projects are started with the best intentions. Many of them may not get finished. DIY can also be dangerous. For example, anything electrical should be done by a professional worker. Unluckily, many people don’t care about this warning and put themselves in danger. It is reported that in just one year over 230,000 people were hurt while doing DIY in UK, including 41,000 who fell off ladders.

Therefore , DIY can bring us fun and help us save money, but it is not always as easy as it is thought to be if we bite off more than we can chew. Maybe factories should make products that are easier and safer for us to DIY.

小题1:How do many English people spend their hoildays to the passage?

A．Making their homes beautiful.

B．Visiting their friends.

C．Travelling all over the world

D．Making a lot of money小题2:Why do English people like DIY?

A．Many stores sell DIY things.

B．DIY can bring them fun.

C．TV programmes teach them to DIY

D．All DIY projects are easy.小题3:What can we learn from the passage?

A．DIY is a waste of money.

B．it is always difficult to DIY.

C．We should be careful while doing DIY.

D．It is very safe for us to DIY.小题4:In the passage, “we bite off more than we can chew” probably means      .

A．We can eat everything we like.

B．We should do something difficult.

C．We do something that is too difficult.

D．We eat too much food that is not safe.

患者，男性，70岁，以肺癌入院。血型为B型、RhD阳性。次日因贫血输B型红细胞2U，无任何不良反应。28天后经盐水法配血相合后又输入B型红细胞2U，当第一袋血输入20ml左右，病人突然寒战、大汗、面色苍白、血压下降、腰背发酸、胀痛、无尿。考虑急性溶血性输血反应，立即停止输血，进行抢救。

检查结果显示：受者Rh表型为CcDee，两次输血供者分别为CcDEE、CcDEe。患者可能产生的抗体是（）

A.IgM抗-E

B.IgG抗-E

C.IgA抗-E

D.IgD抗-E

E.IgE抗-E

仪表接地系统由（）组成。

A、接地线

B、接地汇流排

C、接地体

D、公用连接板

家用灶具在使用中有异臭味，这是什么原因？

真核生物mRNA帽子结构中被甲基化的核苷酸是

A．腺苷酸
B．鸟苷酸
C．胞苷酸
D．尿苷酸
E．胸苷酸