单项选择题
工业洗衣机甩干时转速快，洗涤时转速慢，烘干时转速更慢，故需要变频器的（ ）功能。
A 转矩补偿
B 频率偏置
C 多段速控制
D 电压自动控制
工业洗衣机甩干时转速快，洗涤时转速慢，烘干时转速更慢，故需要变频器的（ ）功能。
A 转矩补偿
B 频率偏置
C 多段速控制
D 电压自动控制
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单项选择题
A 40-year old woman is unable remember where she lived or even her phone. She presents disoriented and confused. She is admitted for observation and testing and begins to hallucinate and salivate excessively. The woman had been bitten by a raccon. Which of the following is the most likely cause?
A 40-year old woman is unable remember where she lived or even her phone. She presents disoriented and confused. She is admitted for observation and testing and begins to hallucinate and salivate excessively. The woman had been bitten by a raccon. Which of the following is the most likely cause?
A．Measles
B．Prion
C．Rabies virus
D．HIV
E．Poliovirus