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【单选题】
关于正向间接凝集抑制试验说法错误的是 ( )。A.
主要检测标本中的抗体
B.
抗原致敏载体
C.
抗体为诊断试剂
D.
出现凝集为阳性
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举一反三
【单选题】What can we infer from paragraph 2?
A.
You may have a job unless you get a high school diploma at least.
B.
If you can't get a high school diploma you will die lonely in society.
C.
It is possible to be a genius like George Bernard Shaw or Thomas Alva Edison.
D.
If your name is George Bernard Shaw or Thomas Alva Edison, you will be certainly out of work.
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【简答题】胎头吸引术如滑脱重新放置最多的次数为:
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