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【简答题】
水准测量误差按其来源,可分为 、观测与操作者的误差以及外界环境的影响等三个方面。
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参考答案:
举一反三
【单选题】The condition, MRS l,C = w, describes the representative consumer's
A.
investment decision.
B.
consumption - savings decision.
C.
current period work - leisure decision.
D.
future period work - leisure decision.
【单选题】以下哪项不属于物理性致癌因素?
A.
红外线
B.
紫外线
C.
X射线
D.
E.
放射性同位素
【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 enlar...
A.
α1-Antitrypsin deficiency
B.
Chronic alcohol abuse
C.
Hepatitis E viral infection
D.
Hereditary hemochromatosis
E.
Primary sclerosing cholangitis
【简答题】The principal representative of American descriptive linguistics is L. Bloomfield, whose book ______ (1933) was once held as the model of scientific methodology.
【单选题】Sister Carrie written by ________ is considered as one of the representative naturalistic novels in the American literature.
A.
Sinclair Lewis
B.
Theodore Dreiser
C.
F. Scott Fitzgerald
D.
H. L. Mencken
【单选题】以下哪项不属于致癌因素?(  )
A.
红外线    
B.
紫外线    
C.
X射线    
D.
γ射线
E.
放射性同位素
【单选题】实际GDP是通过( )得到的。
A.
当期产量乘以GDP平减指数
B.
当期产量除以GDP平减指数
C.
当期 产量 乘以基期价格
D.
当期 产量 除以基期价格
【单选题】以下哪项不属于致癌因素( )
A.
红外线
B.
紫外线
C.
X射线
D.
亚硝胺类
E.
病毒
【单选题】实际 GDP是通过( )得到的。a.当期GDP乘以GDP缩减指数; b.当期GDP除以GDP缩减指数;c.当期GDP乘以基期价格; d.当期GDP除以基期价格。
A.
b
B.
b
C.
c
D.
d
【单选题】The representative samples,making up l0%ofthe whole lot,were drawn at random.
A.
inereasing
B.
reducing
C.
comprising
D.
constituting
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