当前设计高性能计算机的重要技术途径是( )。A.提高CPU主频 B.扩大内存容量

题型:单项选择题

问题:

当前设计高性能计算机的重要技术途径是( )。

A.提高CPU主频

B.扩大内存容量

C.采用非冯·诺依曼的结构

D.采用并行处理技术

考点:普通考研计算机学科专业基础综合计算机系统概述
题型:单项选择题

阅读理解。

     A recent report says about 18% of China teenagers can have problems with their minds. Some students

become worried because they have to study very hard. Others have trouble getting on well with people like

their parents and classmates.

     Zhang Qiang, a Junior 2 student from China, could not understand his teachers in class and was doing

badly in his lessons. He was afraid of exams. When he looked at the exam paper, he couldn't think of anything

to write.   

     Another student, a 15-year-old girl called Wu Yan from Guangdong often argued (争吵) with her

classmates even her parents because of some different ideas. She became so angry with them that she

started  to cut her finger with a knife.

      However, many students who have problems won't go for advice or help. Some think they will look

stupid if they go to see a doctor. Others don't want to talk about their secrets. In order to solve the teenagers'

problems, here is some advice:

     ● Talk to your parents or teachers often.

     ● Take part in group activities and play sports.

     ● Go to see a doctor if you feel unhappy or unwell.

1. Some students became worried because of  _____. 

A. their study

B. their teachers

C. their hobbies

D. their clothes

2. Wu Yan cut her finger with a knife because _____.

A. she was afraid of exams

B. she had no money for a new shirt

C. she could not understand her teachers in class

D. she often argue with her classmates and her parents

3. How many pieces of advice are given to the teenagers who have problems in this passage?

A. Two.

B. Three.

C. Four.

D. Five.

题型:单项选择题

下列选项中,符合有限责任公司特征的是()

A.资合性

B.公开性

C.设立程序较为简单

D.股东会、董事会与监事会是必设机构

题型:单项选择题

最容易发生压缩性骨折的是()

A.骨盆骨折

B.股骨颈骨折

C.胫腓骨骨折

D.腰椎骨折

E.肱骨干骨折

题型:单项选择题

全口义齿的固位与哪个因素关系最小

A.咬合力
B.内聚力
C.附着力
D.表面张力
E.大气压力

题型:单项选择题

对噪声的理解,正确的是

A.提高X线剂量,可减小噪声

B.X线剂量增加1倍,噪声减半

C.扫描层厚加厚,噪声减小

D.检测器的灵敏度高,噪声减小

E.骨算法较软组织算法噪声提高

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