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搜题
【单选题】
目前应用最广泛的免疫学检测技术是
A.
凝集反应
B.
沉淀反应
C.
溶血反应
D.
中和反应
E.
标记免疫技术
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举一反三
【单选题】低频信号发生器的频率范围为( )。
A.
20Hz ~ 200KHz
B.
100Hz ~ 1000KH
C.
200 Hz ~ 2000KHz
D.
10 Hz ~ 2000K Hz
【单选题】低频信号发生器的频率范围为()。
A.
100HZ~1000KHZ
B.
10HZ~2000KHZ
C.
20HZ~200KHZ
D.
200HZ~2000KHZ
【简答题】为什么齿面点蚀一般首先发生在靠近节线的齿根面上?
【单选题】低频信号发生器的频率范围为( )。
A.
20Hz~200kHz
B.
100Hz~1000kHz
C.
200HzN2000Hz
D.
10Hz~2000kHz
【单选题】Which of the following statements is NOT true about King Alfred of Wessex ?
A.
Alfred’ s written laws were like comprehensive common law.
B.
In fighting against the Danish invasions of the ninth century he beg a n to unif y the Anglo-Saxon peoples into the single kingdom of England .
C.
He attach ed great importance to justice and reviewed disputed decisions made by his subjects.
D.
Alfred’ s written laws were an attempt to impose uniformity in certain limited fields such as legislation.
【单选题】低频信号发生器的频率范围为( )。
A.
20HZ ~200KHZ
B.
100HZ ~1000KHZ
C.
200HZ ~2000KHZ
D.
10HZ ~2000KHZ
【单选题】低频信号发生器的频率范围为( )
A.
20Hz~200kHz
B.
100Hz~1000kHz
C.
200Hz~2000kHz
D.
10Hz~2000kHz
【判断题】Alfred the Great was the King of the whole Britain.
A.
正确
B.
错误
【单选题】Alfred the Great was the King of ______.
A.
Sussex
B.
Essex
C.
Wessex
D.
Mercia
【多选题】制备二相气雾剂时,常常需加入适宜的潜溶剂,下列可作为潜溶剂的是( )
A.
七氟丙烷
B.
丙二醇
C.
乙醇
D.
丙烷
E.
芳香油
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