通常发绀是指血中还原血红蛋白（） A.>2g/dl B.>4g/dl C.>5g/d_爱下问搜题

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问题单项选择题

通常发绀是指血中还原血红蛋白（）

A.>2g/dl

B.>4g/dl

C.>5g/dl

D.>7g/dl

E.>10g/dl

答案

参考答案：C

单项选择题

任何一个具有两个属性的关系

A．可能属于1NF

B．可能属于2NF

C．可能属于3NF

D．一定属于3NP

选择题

The TV Dwelling Narrowness ( 《蜗居》) is really fantastic. The show has succeeded in much to

the audience. which has contributed to _____ its success.[ ]

A. giving away

B. going through

C. laying aside

D. getting across