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【单选题】
下列关于风险管理的说法，错误的是（ ）
A.
组合中各资产之间的相关性越小，组合的分散风险效果越好
B.
对组合进行保险的成本小于对组合中各项资产分别进行保险的成本之和
C.
风险管理的基本目标是尽可能地将风险降到最低
D.
风险管理决策本质上是权衡收益和风险的过程
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水泥强度和水灰比
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集料的粒径
C.
养护温度和湿度
D.
混凝土的龄期
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【简答题】某工厂某月有三种产品X、Y、Z需要生产。X产品的需求数为2000件,Y产品为1000件,Z产品为500件,它们都会用到A、B、C三种零部件,其需求见下表: 各产品零件构成 产品名称 A 零件 B 零件 C 零件 X 产品 10 2 3 Y 产品 3 5 2 Z 产品 3 10 5 请论述该怎么对其进行均衡化生产(设定每月工作日为20天),使得对零部件每天的生产负荷均衡化,并阐述零部件每天均衡化生产...
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【多选题】影响混凝土强度的因素包括( )。
A.
水泥强度与水灰比
B.
集料
C.
龄期
D.
养护温度和湿度
E.
钢筋的规格
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【单选题】影响混凝土强度的因素中不包括( )。
A.
集料的粒径
B.
养护温度和湿度
C.
混凝土的龄期
D.
水泥强度和水灰比
查看完整题目与答案
【简答题】Private cars are not allowed on the university grounds. __________
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【单选题】The passage implies that public transport network can replace private cars if ______.
A.
the city is not so big
B.
there are more roads and streets
C.
there are more public transport tools
D.
there are more services near transport links
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【简答题】Rewrite each sentence with the word or phrase in brackets, keeping the same meaning. The first part has been written for you. 1. In the United States, private cars are not a luxury. People absolutely ...
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【单选题】Which of the following is NOT true according to the plan?
A.
Fares for all bus or tube journeys are to be fixed.
B.
Buses and taxis are allowed to go freely in the city.
C.
Enough parks should be built near the railway stations on the skirts of the city.
D.
All the private cars are not allowed to go into central London in the day time.
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【单选题】听力原文：W: There are too many private cars on the road now, which causes traffic congestion and also pollution. I think the way to solve the problem is to improve our public transport--more buses, more r...
A.
Too many private cars.
B.
Too many buses.
C.
Too many trains.
D.
To many taxis.
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【单选题】影响混凝土强度的因素中不包括( )。
A.
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B.
集料的粒径
C.
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【多选题】影响混凝土强度的因素包括( )。
A.
水泥强度与水灰比
B.
集料
C.
龄期
D.
养护温度和湿度
E.
钢筋的规格
查看完整题目与答案
【单选题】影响混凝土强度的因素中不包括( )。
A.
集料的粒径
B.
养护温度和湿度
C.
混凝土的龄期
D.
水泥强度和水灰比
查看完整题目与答案
【简答题】Private cars are not allowed on the university grounds. __________
查看完整题目与答案
【单选题】The passage implies that public transport network can replace private cars if ______.
A.
the city is not so big
B.
there are more roads and streets
C.
there are more public transport tools
D.
there are more services near transport links
查看完整题目与答案
【简答题】Rewrite each sentence with the word or phrase in brackets, keeping the same meaning. The first part has been written for you. 1. In the United States, private cars are not a luxury. People absolutely ...
查看完整题目与答案
【单选题】Which of the following is NOT true according to the plan?
A.
Fares for all bus or tube journeys are to be fixed.
B.
Buses and taxis are allowed to go freely in the city.
C.
Enough parks should be built near the railway stations on the skirts of the city.
D.
All the private cars are not allowed to go into central London in the day time.
查看完整题目与答案
【单选题】听力原文：W: There are too many private cars on the road now, which causes traffic congestion and also pollution. I think the way to solve the problem is to improve our public transport--more buses, more r...
A.
Too many private cars.
B.
Too many buses.
C.
Too many trains.
D.
To many taxis.
查看完整题目与答案