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【单选题】
A 57-year-old woman has had increasing abdominal enlargement for 6 months. During the past 2 days, she developed a high fever. On physical examination, her temperature is 38.5° C. The abdomen is enlarged and diffusely tender, and there is a fluid wave. Paracentesis yields 500 mL of cloudy yellowish fluid. The cell count is 532/μL with 98% neutrophils and 2% mononuclear cells. A blood culture is positive for Escherichia coli. The representative gross appearance of her liver is shown in the figure. Which of the following underlying diseases most commonly accounts for these findings?A.
α1-Antitrypsin deficiency
B.
Chronic alcohol abuse
C.
Hepatitis E viral infection
D.
Hereditary hemochromatosis
E.
Primary sclerosing cholangitis
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举一反三
【单选题】The underlined part in the word “ sugges tion ” pronounces _______.
A.
/ ??n /
B.
/ t??n /
C.
/ t?n /
D.
/ t??:n /
【单选题】I can't understand it, will you please _____ once more?
A.
explain that word
B.
repeat that word
C.
explain us that word
D.
explain that word for us
【多选题】25°C时某些弱酸的电离平衡常数如下表，下列说法正确的是( ) 化学式 CH 3 COOH HClO H 2 CO 3 Ka K a =1.8×10 -5 K a =3.0×10 -8 K a1 =4.1×10 -7 K a2 =5.6×10 -11
A.
等物质的量浓度溶液酸性由强到弱的顺序为：H 2 CO 3 ＞CH 3 COOH＞HClO
B.
等物质的量浓度溶液pH由大到小的顺序为：Na 2 CO 3 ＞NaClO＞NaHCO 3 ＞CH 3 COONa
C.
等物质的量浓度的NaClO和NaHCO 3 混合溶液中：c(HClO)＋c(ClO － )＝c(HCO 3 － )＋c(CO 3 2 － )＋c(H 2 CO 3 )
D.
向次氯酸钠溶液中通入少量二氧化碳气体的离子方程式为：ClO — +CO 2 +H 2 O=CO 3 2 — +2HClO
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