题目内容

直接抗人球蛋白试验(Coombstest)用于检测()

A. 血清中游离的抗Rh抗体
B. 天然血型抗体(IgM)
C. Rh抗原
D. 与RBC结合抗Rh抗体
E. 抗人免疫球蛋白抗体(IgG)

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妊娠几周后,B型超声可作为产前诊断项目()

A. 5周
B. 12周
C. 16周
D. 24周
E. 28周

>抽样的方法有以下三种:()、()和()。

请任意写出变流系统中的5种故障名称。

A system administrator boots a server in normal mode, the boot process displays and LED 551 and stops. LED 551 indicates the root volume group is being varied on. All of the following are probable causes of the problem EXCEPT:()

A. The bosboot command failed to complete.
B. The JFS log device is corrupted.
C. The initttab file is corrupted.
D. The /dev entries or /etc files are missing.

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