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问题 单项选择题

有关磁共振造影剂（GD-DTPA）作用原理的描述，正确的是（）。

A.延长T1弛豫时间

B.延长T2弛豫时间

C.缩短T1弛豫时间

D.不影响T2弛豫时间

E.不影响T1弛豫时间

答案

参考答案：C

单项选择题

To Our Readers (读者)
Welcome to the New Century. We have changed many parts of our New Century. Photos are bigger. So you can enjoy the beautiful flowers and clothes better than before. There is more sports news. So you can know more information about sports. There is also a new column (栏目) of English learning and teaching. We are sure it will help you to learn and teach English better. We believe you will find it more intere sting when you read it.
In the six years since its founding (成立) in 1994, New Century has become the best English language newspaper (报纸) in our province. Here we want to give our thanks to Mr. Johnson for his help in the past years.

New Century is one of the best English-language newspapers in the country.
A. Right.B. Wrong. C. Doesn’t say.

As you know, we have tried our best to develop a modern English language newspaper in our province. We’ve done well. We believe we can do better in the future. We hope you will find our New Century even more interesting. Please write to us and let us know what you think of it. We welcome your suggestions.
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单项选择题

给排水管道工程竣工验收后，（）应将有关设计、施工及验收文件和技术资料立卷归档。

A、监理单位

B、施工单位

C、设计单位

D、建设单位
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