放射性核素静脉显像时扎缚止血带的目的()A．加速显像剂从体内清_爱下问搜题

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问题单项选择题

放射性核素静脉显像时扎缚止血带的目的()

A．加速显像剂从体内清除

B．阻止显像剂进入深静脉

C．阻断浅静脉血的回流

D．明确静脉血栓的部位

E．以上都不是

答案

参考答案：C

选择题

_____ Lei Feng is no longer living, his spirit lives on today.[ ]

A. If

B. When

C. Although

D. Because

选择题

— I didn't tell him the news.

— Oh, you __________. [ ]

A. ought to

B. ought to do

C. ought to tell

D. ought to have