关于磁共振波谱（MRS），叙述错误的是

A:正常MRS上可见Lac峰 B:脑梗死时可出现NAA峰降低 C:正常MRS上可见NAA峰 D:Lac峰出现在1.33x10-6处 E:NAA峰出现在2.02x10-6处

关于磁共振波谱（MRS），叙述错误的是（）

A:正常MRS上可见NAA峰 B:正常MRS上可见Lac峰 C:脑梗死时可出现NAA峰降低 D:Lac峰出现在1.33×10-6处 E:NAA峰出现在2.02×10-6处

MRS

关于MRI与MRS的区别，正确的是（）

A:MRS通常以谱线及数值表示代谢产物的信息 B:MRI得到的是解剖图像 C:外加磁场强度越低越有助于MRS谱线的显示 D:MRS对磁场的强度及磁场均匀度有着更高的要求 E:将MRS的信号变化标记到MRI上，直观显示代谢情况，称为MRS成像

关于磁共振波谱(MRS)的概述不正确的是

A:要求高场强MR系统 B:需要良好的磁场均匀性 C:主要测定生物组织化学成分 D:当前研究最多的是脑代谢产物 E:磁共振医学包括影像显示MRS及生物代谢分析MRI

关于磁共振波谱（MRS）的描述，不正确的是（）。

A:要求高场强MR系统 B:需要良好的磁场均匀性 C:主要测定生物组织化学成分 D:当前研究最多的是脑代谢产物 E:磁共振医学包括影像显示MRS及生物代谢分析MRI

Mrs. Luth Li was a Chinese woman living in Singapore. She named her baby girl Patsy Li. This name in Chinese means "white plum blossom". When Patsy Li was six years old, the Japanese attacked Singapore. Mrs. Li and Patsy Li escaped on a ship which was sunk. Mrs. Li placed Patsy Li on a bit of floating wreckage. Later Mrs. Li was saved, but the little girl could not be found.
Many months after, four thousand miles away, a group of United States Marines found a little Chinese girl. No one could tell how she had got there. She refused to talk or give her name. The captain who spoke Chinese named her Patsy Lee because he thought she looked like a white plum blossom.
When the New York Times told about the finding of "Patsy Lee", Mrs. Li’s sister saw the news and wrote to her sister about it. Could Patsy Lee be the lost child Patsy Li The mother made the long voyage to find out. The little "white plum blossom" was indeed her own Pasty Li.
Who found Patsy Li first

A:The Marines. B:The sailors. C:The soldiers. D:Mrs. L