肝胆动态显像过程中进食脂肪餐的目的()
A.防止泌尿系统显影
B.改善影像质量
C.了解胆囊收缩功能
D.黄疸的鉴别诊断
E.供给患者必要的能量
参考答案:C
看图,补全对话,每空一词。
1. —Is this _____ pen?
—No, it's Jane's (Jane的) pen.
2. —What _____ is your pencil case?
—It's blue and red. Look, that is _____ pencil case.
3. —Here is your pencil sharpener.
—_____ _____, Jane.
4. —Is this your _____?
—Yes, _____ it is new (新的).
5. —What's this _____ English?
—It's a _____.
通信塑料管道,其管身应光滑无伤痕,管孔无变形,孔径壁厚应符合设计要求,负偏差应不大于1mm。