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【判断题】
3-甲基-2,5-二烯 比 5-甲基-2,4-二烯稳定
A.
正确
B.
错误
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【单选题】It is hard to predict how science is going to turn out, and if it is really good science it is impossible to predict. If the things to be found are actually new, they are by definition unknown in adva...
A.
thought that they knew a great deal and could solve most problems of science
B.
were afraid of facing up to the realities of scientific research
C.
knew that they were ignorant and wanted to know more about nature
D.
did more harm than good in promoting man's understanding of nature
查看完整题目与答案
【单选题】It is hard to predict how science is going to turn out, and if it is really good science it is impossible to predict. If the things to be found are actually new, they are by definition unknown in adva...
A.
will bring about surprising and disturbing results
B.
will produce results which cannot be foreseen
C.
will help people to make the right choice in advance
D.
would surprise the brightest minds of the 18th century Enlightenment
查看完整题目与答案
【单选题】It is hard to predict how science is going to turn out, and if it is really good science it is impossible to predict. If the things to be found are actually new, they are by definition unknown in adva...
A.
would surprise the brightest minds of the 18th century Enlightenment
B.
will produce results which cannot be foreseen
C.
will help people to make the right choice in advance
D.
will bring about disturbing results
查看完整题目与答案
【单选题】下面有关对象—关系数据库系统的叙述中，不正确的是( )。
A.
一个对象由一组属性和对这组属性进行操作的一组方法构成
B.
消息是用来请求对象执行某一操作或回答某些信息的要求
C.
方法是用来描述对象静态特征的一个操作序列
D.
属性是用来描述属性特征的一数据项
查看完整题目与答案
【简答题】贯穿理论始终的精髓是( ),( )
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【单选题】This pair of trousers is very beautiful. May I ______ ?
A.
try on it
B.
try it on
C.
turn it on
D.
turn on it
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【单选题】下面有关对象属性的叙述中,不正确的是( )。
A.
一个对象的属性可分为外观、行为等若干类
B.
不同对象的相同属性可能具有不同的数据类型
C.
一个对象的所有属性都可在属性窗口的列表中进行设置
D.
属性窗口中的属性列表可以按字母顺序，也可按类别排列
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【多选题】下列关于商业贿赂行为的说法中，正确的是( )。
A.
回扣与正当的折扣、佣金的根本区别在于折扣和佣金必须如实入账，而回扣是账外暗中进行的
B.
商业贿赂的主要目的是排斥竞争
C.
商业贿赂行为包括行贿和受贿两个行为，因此具有一定的对合性
D.
折扣是商业贿赂的主要表现形式
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【单选题】下面关于探测地外行星的视向速度法的说法正确的是( )
A.
很容易测量具有大轨道的行星
B.
利用的是多普勒效应
C.
可以准确测量行星的质量
D.
适用于各种恒星-行星系统
查看完整题目与答案
【多选题】下列关于商业贿赂行为的说法中，正确的是（ ）
A.
商业贿赂行为包括行贿和受贿两个行为
B.
商业贿赂的主要目的是谋取交易机会或竞争优势
C.
商业贿赂的方式单一，仅包括现金的赠予
D.
折扣和佣金必须如实入账，而回扣是账外暗中进行
查看完整题目与答案
相关题目：
【单选题】It is hard to predict how science is going to turn out, and if it is really good science it is impossible to predict. If the things to be found are actually new, they are by definition unknown in adva...
A.
thought that they knew a great deal and could solve most problems of science
B.
were afraid of facing up to the realities of scientific research
C.
knew that they were ignorant and wanted to know more about nature
D.
did more harm than good in promoting man's understanding of nature
查看完整题目与答案
【单选题】It is hard to predict how science is going to turn out, and if it is really good science it is impossible to predict. If the things to be found are actually new, they are by definition unknown in adva...
A.
will bring about surprising and disturbing results
B.
will produce results which cannot be foreseen
C.
will help people to make the right choice in advance
D.
would surprise the brightest minds of the 18th century Enlightenment
查看完整题目与答案
【单选题】It is hard to predict how science is going to turn out, and if it is really good science it is impossible to predict. If the things to be found are actually new, they are by definition unknown in adva...
A.
would surprise the brightest minds of the 18th century Enlightenment
B.
will produce results which cannot be foreseen
C.
will help people to make the right choice in advance
D.
will bring about disturbing results
查看完整题目与答案
【单选题】下面有关对象—关系数据库系统的叙述中，不正确的是( )。
A.
一个对象由一组属性和对这组属性进行操作的一组方法构成
B.
消息是用来请求对象执行某一操作或回答某些信息的要求
C.
方法是用来描述对象静态特征的一个操作序列
D.
属性是用来描述属性特征的一数据项
查看完整题目与答案
【简答题】贯穿理论始终的精髓是( ),( )
查看完整题目与答案
【单选题】This pair of trousers is very beautiful. May I ______ ?
A.
try on it
B.
try it on
C.
turn it on
D.
turn on it
查看完整题目与答案
【单选题】下面有关对象属性的叙述中,不正确的是( )。
A.
一个对象的属性可分为外观、行为等若干类
B.
不同对象的相同属性可能具有不同的数据类型
C.
一个对象的所有属性都可在属性窗口的列表中进行设置
D.
属性窗口中的属性列表可以按字母顺序，也可按类别排列
查看完整题目与答案
【多选题】下列关于商业贿赂行为的说法中，正确的是( )。
A.
回扣与正当的折扣、佣金的根本区别在于折扣和佣金必须如实入账，而回扣是账外暗中进行的
B.
商业贿赂的主要目的是排斥竞争
C.
商业贿赂行为包括行贿和受贿两个行为，因此具有一定的对合性
D.
折扣是商业贿赂的主要表现形式
查看完整题目与答案
【单选题】下面关于探测地外行星的视向速度法的说法正确的是( )
A.
很容易测量具有大轨道的行星
B.
利用的是多普勒效应
C.
可以准确测量行星的质量
D.
适用于各种恒星-行星系统
查看完整题目与答案
【多选题】下列关于商业贿赂行为的说法中，正确的是（ ）
A.
商业贿赂行为包括行贿和受贿两个行为
B.
商业贿赂的主要目的是谋取交易机会或竞争优势
C.
商业贿赂的方式单一，仅包括现金的赠予
D.
折扣和佣金必须如实入账，而回扣是账外暗中进行
查看完整题目与答案