CT对于诊断前列腺癌的主要意义在于（） A.早期诊断 B.与良性前列腺增生肥大鉴别

（）是保险经纪分支机构的业务范围和经营区域的授权单位。

A.中国保监会

B.保险经纪机构

C.中国银监会

D.保险行业协会

金曼克中学有A、B两台复印机，用于印刷学习资料和考试试卷．该校七年级举行期末考试，其数学试卷如果用复印机A、B单独复印，分别需要50min和40min．在考试时为了保密需要，不能过早提前印刷试卷．决定在考试前由两台复印机同时复印，在复印20min后B机出了故障，此时离发卷还有8min，请你算一下，如果由A机单独完成剩下的复印任务，会不会影响按时发卷？

阅读理解。

     Some wonderfully creative uses of X-rays have been in the world of art.But the most impressive one

is to uncover what has been covered up.Details unfolded by an X-ray of a painting can ' t be seen any

other way.For example, in the past, paintings were often repaired if small pieces of paint fell off the

canvas (帆布). These repairs cannot be seen just by looking at the painting.It takes an X-ray to discover where the repairs have been made.

    An X-ray of a painting is one of the best ways to tell if it was created by a famous painter or if it is a

forgery.If there is a question as to whether an old master has painted a certain painting or not, X-rays

are made and compared to those of paintings that are known to be original.If the brushstrokes (笔迹) ,

for example, are shown to be totally different than in other work done by a certain artist, then the painting

is proved to be a fake copy.

     Since modern paints are usually made from different materials than paints of hundreds of years ago,

the image they leave on an X-ray film looks different.This is another way X-rays can be used to spot a

forgery.A modem artist will try to make a forgery look hundreds of years old by painting dirty vamish on

it or by using artificial means to get the varnish to look cracked.To the naked eye the forgery may look

old, but when a careful study of the X-ray image is made, the deception is obvious.

     It was common many years ago for an artist to finish a painting, decide it wasn't any good, and paint

a completely different picture on top of it.Or artists would paint over others' work -it was their version

of recycling.Taking an X-ray is the only way to find out if there is a picture under the picture you see with

your eyes.Sometimes museums will be more interested in the painting beneath than the one on top, and

will restore the older one by having the top layer painstakingly removed.

1.What is the main purpose of the article?  

A. To provide information to the police who are looking for stolen art.

B. To persuade art dealers to check for fake copies before selling art.

C. To explain how modern technology can be applied in unique ways.

D. To help artists restore damaged artwork to its original appearance.

2. According to the passage, X-rays are used to ______. 

A. make repairs on paintings in the past

B. tell if an artwork is original or not

C. change the materials of a forgery

D. remove the recyclable paints

3. In Paragraph 3, the word "deception" probably means ______.

A. comparison  

B. drawback    

C. trickery          

D. judgement

4.Which is the best title for the passage?

A. X-ray Detectives              

B. Creative Uses of Technology

C. Forgery Studies                

D. X-ray Painting Technique

简述YB65型条盒包装机条盒纸吸盘更换步骤。

关于败血症正确的是（）

A.条件致病菌常在免疫功能低下的患者中致病

B.均有寒战、发热、皮疹及休克

C.真菌败血症常为院内感染的疾病

D.革兰氏阳性杆菌败血症以金黄色葡萄球菌为主

E.革兰氏阴性杆菌败血症发病率明显上升，以大肠杆菌为主