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【单选题】
选择注射为最佳途径的药物是A.
庆大霉素
B.
安痛定(阿尼利定)
C.
百白破疫苗
D.
青霉素
E.
维生素B12
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反馈参考答案：
举一反三
【单选题】对集中选频放大器下列说法不正确的是( )。
A.
集中选频放大器具有接近理想矩形的幅频特性；
B.
集中选频放大器选择性好；
C.
集中选频放大器 调谐方便
D.
集中选频放大器可用陶瓷滤波器构成。
【单选题】______ scientists know where a storm will happen, winds will suddenly change, carrying the storm to a new direction.
A.
Even if
B.
Since
C.
Despite
D.
Unless
【简答题】What have scientists come to know recently about formation of life?
【简答题】Do scientists know how many cryptic species exist?
【简答题】The public will not know the answer about masks until scientists ________.
【单选题】From the passage we know that the author__________
A.
thinks that scientists are about to achieve artificial intelligence
B.
doubts whether scientists can ever achieve artificial intelligence
C.
does not think that scientists have found real artificial intelligence
D.
is sure that scientists have achieved artificial intelligence.
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