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问题 单项选择题 A1/A2型题

如果磁共振图像为256×256的矩阵，则空间定位时需要进行次相位编码（）

A.128

B.256

C.512

D.1024

E.1

答案

参考答案：B

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书面表达（共1题，计15分）
新海浪乐队是一支受欢迎的乐队。以下是有关这支乐队的一些信息，请根据所给的信息写一篇报道，不少于80词。
Name of Band: New Ocean Waves
It was founded in October of 2004
The things they have done:
1. had three major concerts
2. made a hit CD
3. won the best new group of the year
The things they are going to do:
1. to appear on CCTV
2. to go on a world tour next month
3. to have a number one hit some day
                                                                            
                                                                            
                                                                            
                                                                            
                                                                            
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单项选择题 A1型题

慢性肾衰竭高血压的最主要原因是（）

A.醛固酮增高

B.水钠潴留

C.肾素水平增高

D.血管紧张素水平增高

E.交感神经兴奋性增高
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