问题
单项选择题
用于PCR检测HCV-RNA的血清或血浆最好置于
A.室温
B.4℃
C.-20℃
D.-70℃
E.-80℃
答案
参考答案:E
解析: 本题要点为HCV PCR检测条件,最好冻在-80℃,因为在-20℃时HCV RNA发生明显降解。
用于PCR检测HCV-RNA的血清或血浆最好置于
A.室温
B.4℃
C.-20℃
D.-70℃
E.-80℃
参考答案:E
解析: 本题要点为HCV PCR检测条件,最好冻在-80℃,因为在-20℃时HCV RNA发生明显降解。
情景交际 | |
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A: Weather report says that it will be sunny tomorrow. (1) ___________ B: A picnic? Sounds great! But where will we go? A: Let's go to the newly-built park. OK? B: (2) ___________ A: It's only ten minutes' walk from here. B: Great. I'll take my CD player besides some food. A: (3) ___________ B: Light music. (4) ___________ Would you like to have a try? A: Sure. B: Then I will bring many CDs for you tomorrow. (5) ___________ A: How about seven o'clock at the gate of Bank of China? B: OK. See you then. A: See you. |