单项选择题

卷褶伪影可以通过下述方法抑制（） A.
减小层厚 B.
加大FOV C.
全矩阵采集 D.
改变频率编码方向 E.
增加平均次数

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多项选择题

According to UCP600, ( ) are right? A. The words “about” or “approximately” mean 10% more or less. B. The words “about” or “approximately” mean 5% more or less. C. “More or less” quantity is totally not allowed. D. Quantity tolerance does not apply to individual items. E. Quantity tolerance also applies to individual items.

柠檬酸钠抗凝是激活抗凝物质的结果。

答案：错误