肾功能不全患者影像检查不推荐使用的对比剂包括()
A.硫酸钡
B.注射用含碘非离子型对比剂
C.聚乙二醇溶液
D.含钆对比剂
E.口服含碘非离子型对比剂
参考答案:B, D
The research mainly deals with the difficulty the students have ________ their attention on their study all
the time.[ ]
A.to focus
B.to be focused
C.focusing
D.focused
越鞠丸的功用是()。
A.行气散结
B.行气和血
C.行气消痞
D.行气止痛
E.行气解郁