所谓的外部中断，常常包括有( )。A．CPU故障中断 B．溢出中断 C．控制台、时

阅读理解。

     Have you ever seen the film Traveling Bird? In the film, groups of birds fly high above the sky and cross

the way above snow, rivers, fields, sea and grassland. I'm sure you will love the beautiful picture when you

see the film.

     But you may not feel so good if you have learnt about bird flu (禽流感) from TV or on the Internet. Some

governments had to kill chickens in their cities. A large number of chickens and even some people died in Asia,

and nearly 8,500birds died in Russia because of bird flu.

     Chickens can get bird flu from the feces (粪便) of the passing birds. It is not so difficult to control the

chicken in cages or on farms. But it is much more difficult to control the birds in the sky.

     Luckily, scientists have found a medicine for bird flu. But the virus (病毒) can change easily and quickly.

So bird flu is still a serious problem we must face.

根据短文内容，判断下列句子的正误，正确的用“T”，错误的用“F” 。

( )1. We know how birds get bird flu from the film Traveling Bird.

(     )2. Not only birds and chickens but also man can get bird flu.

( )3. The feces of the passing birds can not cause bird flu.

(     )4. It is easier to control chickens than to control flying birds.

( )5. Scientists have found the medicine, so we needn't worry about bird flu any more.

对西安事变及和平解决事变的正确评价是

①是一次具有爱国意义的兵变②标志着十年内战基本结束

③预示了团结抗日新局面的到来④标志着国共两党第二次合作初步形成[ ]

A．①②③④

B．①②④

C．②③④

D．①③④

第一次世界大战

记账以后，发现记账凭证应借、应贷的账尸名称和金额正确，但借贷方向错误，应采用的更正方法是( )。

A．划线更正法

B．红字更正法

C．补充登记法

D．平行登记法

为了节约用电，庭院灯和杆上路灯现通常有根据自然光的亮度而自动启闭，所以要进行调试，不像以前只要装好后，用人工开断试亮即可。( )