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【简答题】
已知 都是锐角，且 ． （Ⅰ）求证： ； （Ⅱ）当 取最大值时，求 的值．
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【判断题】环境质量可以通过环境质量评价来判定，环境质量评价是确定环境质量的手段、方法。（ ）
A.
正确
B.
错误
查看完整题目与答案
【单选题】大气环评时基本污染物环境质量现状数据优先采用()。
A.
国家或地方生态环境主管部门公开发布的评价基准年环境质量公告或环境质量报告中的数据。
B.
评价范围内国家或地方环境空气质量监测网中评价基准年连续 1 年的监测数据
C.
生态环境主管部门公开发布的环境空气质量现状数据
D.
与评价范围地理位置邻近， 地形、 气候条件相近的环境空气质量城市点或区域点监测数据。
查看完整题目与答案
【单选题】The researchers’ conclusion concerning the absence of demographic bias would be most seriously undermined if it were found that______
A.
the older as individual carnivore is, the more likely it is to have a large number of tooth fratures
B.
the average age at death of a present-day carnivores is greater than was the average age at death of a Pleistocene carnivore
C.
in Pleistocene carnivore species, older individuals consumed carcasses as thoroughly as idd younger individuals
D.
the methods used to determine animals’ ages in fossile samples tend to misidentify many older individuals as younger individuals
E.
data concerning the ages of fossil samples cannot provide reliable information about behavioral differences between extinct carnivores and present-day carnivores
查看完整题目与答案
【单选题】The text tries to convey the idea that hatred of bankers is______.
A.
a most dangerous prejudice
B.
a natural response to recession
C.
an unignorable warning to financiers
D.
a historically justified phenomenon
查看完整题目与答案
【判断题】环境质量是指以人为主体的环境质量，因此环境质量是一个相对概念。()
A.
正确
B.
错误
查看完整题目与答案
【多选题】环境质量包括( )。
A.
综合环境质量
B.
室内环境质量
C.
水环境质量
D.
土壤环境质量
E.
大气环境质量
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【单选题】___ tries the most serious offences such as murder and robbery.
A.
Magistrates’ courts
B.
Youth courts
C.
district courts
D.
The Crown Court
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【单选题】According to the writer, food is most expensive______.
A.
so he always tries to hunt for bargains
B.
but he likes to check advertisements in newspapers
C.
but he often reads the market's 'sale' papers
D.
but he tries to make up a shopping list
查看完整题目与答案
【多选题】按时间顺序分类，环境质量评价可分为()
A.
环境质量回顾评价
B.
环境质量现状评价
C.
环境质量后评价
D.
环境质量预测评价
查看完整题目与答案
【多选题】环境质量包括( )。
A.
综合环境质量
B.
大气环境质量
C.
水环境质量
D.
土壤环境质量
E.
室内环境质量
查看完整题目与答案
相关题目：
【判断题】环境质量可以通过环境质量评价来判定，环境质量评价是确定环境质量的手段、方法。（ ）
A.
正确
B.
错误
查看完整题目与答案
【单选题】大气环评时基本污染物环境质量现状数据优先采用()。
A.
国家或地方生态环境主管部门公开发布的评价基准年环境质量公告或环境质量报告中的数据。
B.
评价范围内国家或地方环境空气质量监测网中评价基准年连续 1 年的监测数据
C.
生态环境主管部门公开发布的环境空气质量现状数据
D.
与评价范围地理位置邻近， 地形、 气候条件相近的环境空气质量城市点或区域点监测数据。
查看完整题目与答案
【单选题】The researchers’ conclusion concerning the absence of demographic bias would be most seriously undermined if it were found that______
A.
the older as individual carnivore is, the more likely it is to have a large number of tooth fratures
B.
the average age at death of a present-day carnivores is greater than was the average age at death of a Pleistocene carnivore
C.
in Pleistocene carnivore species, older individuals consumed carcasses as thoroughly as idd younger individuals
D.
the methods used to determine animals’ ages in fossile samples tend to misidentify many older individuals as younger individuals
E.
data concerning the ages of fossil samples cannot provide reliable information about behavioral differences between extinct carnivores and present-day carnivores
查看完整题目与答案
【单选题】The text tries to convey the idea that hatred of bankers is______.
A.
a most dangerous prejudice
B.
a natural response to recession
C.
an unignorable warning to financiers
D.
a historically justified phenomenon
查看完整题目与答案
【判断题】环境质量是指以人为主体的环境质量，因此环境质量是一个相对概念。()
A.
正确
B.
错误
查看完整题目与答案
【多选题】环境质量包括( )。
A.
综合环境质量
B.
室内环境质量
C.
水环境质量
D.
土壤环境质量
E.
大气环境质量
查看完整题目与答案
【单选题】___ tries the most serious offences such as murder and robbery.
A.
Magistrates’ courts
B.
Youth courts
C.
district courts
D.
The Crown Court
查看完整题目与答案
【单选题】According to the writer, food is most expensive______.
A.
so he always tries to hunt for bargains
B.
but he likes to check advertisements in newspapers
C.
but he often reads the market's 'sale' papers
D.
but he tries to make up a shopping list
查看完整题目与答案
【多选题】按时间顺序分类，环境质量评价可分为()
A.
环境质量回顾评价
B.
环境质量现状评价
C.
环境质量后评价
D.
环境质量预测评价
查看完整题目与答案
【多选题】环境质量包括( )。
A.
综合环境质量
B.
大气环境质量
C.
水环境质量
D.
土壤环境质量
E.
室内环境质量
查看完整题目与答案