胸部X线平片上克氏B线产生的机理是（）。 A.肺动脉压升高 B.肺充血 C.淋巴回流

阅读理解。

     French doctors and American scientists have reported doing an operation in which the doctor was outside

the operating room. This kind of operation is known as robotic operation.

     Doctor Marescaux did the operation in an office in New York City last month, while a sixty-eight-year-old

woman patient was in a hospital in Strasbourg, France.

     A doctor in Strasbourg got the patient ready. He placed medical tools and a small video camera in her

stomach area. Doctor Marescaux in New York watched the patient on a video screen. Then he used the

computer to send messages to the robot machine. The robot moved the tools that cut the woman's gallbladder

(胆囊) away. The woman got well soon after the operation and left the hospital two days later.

     Experts say the main problem with such a robotic operation is based on high-speed telecommunications

between the doctor and the robot. Technology must be able to send a doctor's order to a robot to move the

tools quickly.

     Experts also say a successful robotic operation will improve an operation. For example, the robot can make

much smaller movements than a person can. A robot machine can turn tools in ways that a doctor's hand

cannot.

     Doctors say such a robotic operation will make possible safer and better operations in the future. They say

it will improve doctor training. It will also mean that doctors could do an operation on people in dangerous

places far away. And it could mean that people could have operations done by top doctors without having to

travel to the city where doctors work.

1. "Robotic operation" means "______".

A. a special kind of robot invented by doctors

B. an operation done far away

C. an operation done with the help of a robot

D. something done to mend a robot

2. We use the robot in the operation because ______.

A. it can send messages at a high speed

B. even a top doctor can't do the operation himself

C. it can make the operation safer and better

D. operations can be done without any doctors

3. If we want to use the robot in the operation, we must solve the problem of ______.

A. top doctors

B. smaller movements

C. doctor training

D. high-speed telecommunications

4. If the smaller movement can't be done by doctors in the operation, we may use ______ to solve it.

A. more tools

B. a robot machine

C. a video camera

D. telecommunications

5. Which of the following is NOT true?

A. Robotic operation is good for doctor training.

B. Robotic operation has been used in the USA.

C. Experts speak highly of robotic operation.

D. The robot is used to watch the patient clearly.

女，23岁，反复上腹部疼痛伴黑便2年余，呕吐3天。有血吸虫病史，曾行脾脏切除。结合图像，最可能的诊断为（）

A.正常食管

B.食管静脉曲张

C.食管胃底静脉曲张

D.贲门失弛缓症

E.食管癌

道德主要通过（）

A.都是调节人们行为的规范

B.两者的社会基础不同

C.行为者道德良心引导人们自觉遵守社会的道德规范和准则

D.国家机器的强制性力量来制约人们的社会行为

E.产生和发展的趋势相同

气相色谱法的进样口温度应高于柱温

A．30～50℃
B．20～50℃
C．10～30℃
D．10～50℃
E．50～100℃

耦合作用