8岁小儿重度贫血的诊断指标是 : A．Hb>120g/L B．Hb~120g/L C_爱下问搜题

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问题单项选择题

8岁小儿重度贫血的诊断指标是 :

A．Hb>120g/L

B．Hb~120g/L

C．Hb~90g/L

D．Hb~60g/L

E．Hb~30g/L

答案

参考答案：D

判断题

张拉平卧重叠浇筑的后张法预应力构件时，宜先上后下逐层进行张拉。( )

单项选择题

(73) is used to ensure the confidentiality, integrity and authenticity of the two end points in the private network.

A．Certificate

B．Encryption

C．Tunnel

D．Presentation