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【单选题】
已知某国的资本品存量年初为20000亿美元,本年度生产了5000亿美元的资本品,资本消耗折旧是3000亿美元,则该年度的总投资和净投资分别为( )。
A.
5000亿美元和 2000亿美元
B.
25000亿美元和 23000亿美元
C.
5000亿美元和3000亿美元
D.
15000亿美元和2000亿美元
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【判断题】唯心主义认为世界统一于意识。
A.
正确
B.
错误
【单选题】Newspapers and scientific journals are both______.
A.
suffering from revenue shrink
B.
operating under systematic reviews
C.
facing huge pressures to change
D.
moving in the direction favored by Shirky
【单选题】Which of the listed pressure control valves would be used to establish the maximum operating pressure of a hydraulic system?
A.
Pressure-reducing valve
B.
Unloading valve
C.
Counterbalance valve
D.
Pressure-relief valve
【单选题】已知向量 a =(3,4), b =(2,-1) ,如果向量 a +x b 与 b 垂直,则x=(  )
A.
23 3
B.
3 23
C.
2
D.
- 2 5
【单选题】The construction portfolio may be included as part of the ship ().
A.
general plans
B.
operating manual
C.
builders documentation
D.
CCS file
【单选题】In the Oil Record Book, a comprehensive list of operational items are grouped into operational sectionsEach section is codified by a/an _____.
A.
number
B.
abbreviation
C.
letter
D.
All of the above
【单选题】唯物主义和唯心主义在世界统一性问题上的根本分歧是( )
A.
认为世界统一于运动还是统一于静止
B.
认为世界统一于主体还是统一于客体
C.
认为世界统一于物质还是统一于精神
D.
肯定世界的统一性还是否认世界的统一性
【单选题】阅读下文,回答题 The Chinese have used a method called acupuncture(针灸) to perform. operations for about 4,000 years without putting the patient to sleep. This involves placing flexible needles into certain pa...
A.
a medical operation
B.
a medical needle
C.
a medical technique
D.
a medical machine
【单选题】已知向量 a =(3,4), b =(2,-1),如果向量 a +x b 与 b 垂直,则x的值为 [     ]
A.
B.
C.
2
【单选题】已知向量 a =(2,1), b =(x,-2)且 a + b 与2 a - b 平行,则x等于(  )
A.
-6
B.
6
C.
-4
D.
4
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