彩色多普勒血流显像技术检测主动脉瓣口血流,速度标尺应如何选择应用?
A、选择高速档
B、选择低速档
C、不需进行速度调节
D、选择中等速度
E、以上都不是
参考答案:A
—Have you ______ the school football team?
—Yes, But I haven't ______ a match so far. [ ]
A. joined; taken part in
B. joined; joined
C. taken part in; joined
D. taken part in; taken part in
重度妊娠高血压综合征拟行扩容治疗,最关键的检查项目是:
A.血浆总蛋白值
B.心电图检查
C.24小时尿蛋白定量
D.血细胞比容
E.眼底检查