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【判断题】
[判断题]变压器并列运行,一般允许阻抗电压有±10%的差值,若差值大,可能阻抗电压大的变压器承受负荷偏高,阻抗电压小的变压器承受负荷偏低,从而影响变压器的经济运行。()A.
正确
B.
错误
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【单选题】which is the most likely type of acute viral hepatitis?
A.
Hepatitis A virus
B.
Hepatitis B virus
C.
Hepatitis C virus
D.
Hepatitis D virus
E.
Simultaneous infection of acute hepatitis B and C virus
【单选题】It is said that the plant can be used to_______ hepatitis( 肝炎 ).
A.
treat
B.
treatment
C.
trend
D.
treasure
【多选题】The features of hepatitis A include:
A.
It is a benign, self-limited disease
B.
HAV does not cause chronic hepatitis or a carrier state and only rarely causes fulminant hepatitis
C.
HAV is a small, nonenveloped, single-stranded RNA picornavirus
D.
The route of transmission is fecal-oral
E.
Case fatalities occur at a very low rate
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