患者消化道大出血，收缩压降至70～90mmHg，脉率增至130次／分，

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问题单项选择题

患者消化道大出血，收缩压降至70～90mmHg，脉率增至130次／分，表示出血量约达全身总血量的（）

A.15%

B.20%

C.25%

D.30%

E.35%

答案

参考答案：C

问答题

根据课本P18 的课文内容，回答下列问题。

1. How many groups did they give talks?

_______________________________

2. What project did they talk about?

______________________________

3. What was the weather like that day?

______________________________

4. When did they give the talk?

______________________________

5. Who showed some physics?

______________________________

判断题

税收法律关系中的征纳双方法律地位平等，但权利义务不对等。