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【单选题】
下列关于基因突变的叙述中，错误的是（）
A.
基因突变发生在DNA复制过程中
B.
基因突变可产生新的基因
C.
基因突变多数是有利的
D.
基因突变可改变遗传信息
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参考答案：
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【多选题】奥苏泊尔认为,学校情境中的成就动机主要由三个方面的内驱力组成,即()・
A.
认知内驱力
B.
自我提高内驱力
C.
外部动机
D.
附属内驱力
查看完整题目与答案
【单选题】If the government gave you a subsidy of $100 per month that you had to spend on housing and if you could spend the remainder of your income in any way you wished, the effect of the subsidy would diffe...
A.
housing were an inferior good for you
B.
housing were a normal good for you
C.
you would spend less than $100 per month on housing when you received the unrestricted $100 monthly increase in your income
D.
you would spend more than $100 per month on housing when you received the unrestricted $100 monthly increase in your income.
查看完整题目与答案
【简答题】采样是对模拟音频信号在时间上的离散化，而量化则是在______上的离散化。
查看完整题目与答案
【判断题】奥苏泊尔认为,学校情境中的成就动机主要由认知内驱力、自我提高内驱力和附属内驱力三个方面组成。
A.
正确
B.
错误
查看完整题目与答案
【单选题】能使肾上腺素升压作用翻转的药物是
A.
普萘洛尔
B.
苯海拉明
C.
酚妥拉明
D.
硝苯地平
E.
硝酸甘油
查看完整题目与答案
【单选题】Suppose an income tax is levied on none of the first $1,000, 10% of the next $10,000, and 20% of the remainder of earnings. This type of tax can be defined as:
A.
.    progressive.
B.
.    proportional.
C.
.    regressive.
D.
.    equitable.
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【多选题】克肯达尔效应的实际意义在于？
A.
直接否定了置换型固溶体扩散的换位机制，支持了间隙机制
B.
直接否定了置换型固溶体扩散的换位机制，支持了空位机制
C.
认为在扩散系统中，每一组元都有自己的扩散系数，即分扩散系数
D.
认为是不等价的离子交换造成了此效应。
查看完整题目与答案
【单选题】The remainder of an integer division is accomplished using the ____________ operator.
A.
%
B.
//
C.
mod
D.
rem
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【单选题】During the year ended 31 March 20X6, Lisbon experienced the following transactions or events: (i) Lisbon sold an asset to a finance company and leased it back for the remainder of its useful life. The...
A.
In doing his presentation he should omit any complex issues, so that everybody can understand what he is saying.
B.
He should open his presentation with the advice that some of them may not understand all of it.
C.
He should classify, characterise and present the information clearly and precisely.
D.
He should deliver his presentation just to those who are financially qualified.
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【单选题】以下关于扩散系数的说法，哪一个是错误的：
A.
表面的扩散系数大于晶界的扩散系数。
B.
间隙型固溶体比置换型固溶体容易扩散。
C.
扩散离子性质与扩散截止性质间差异越大，扩散活化能越高。
D.
晶体结构中的原子间的结合力越强，扩散系数越小。
查看完整题目与答案
相关题目：
【多选题】奥苏泊尔认为,学校情境中的成就动机主要由三个方面的内驱力组成,即()・
A.
认知内驱力
B.
自我提高内驱力
C.
外部动机
D.
附属内驱力
查看完整题目与答案
【单选题】If the government gave you a subsidy of $100 per month that you had to spend on housing and if you could spend the remainder of your income in any way you wished, the effect of the subsidy would diffe...
A.
housing were an inferior good for you
B.
housing were a normal good for you
C.
you would spend less than $100 per month on housing when you received the unrestricted $100 monthly increase in your income
D.
you would spend more than $100 per month on housing when you received the unrestricted $100 monthly increase in your income.
查看完整题目与答案
【简答题】采样是对模拟音频信号在时间上的离散化，而量化则是在______上的离散化。
查看完整题目与答案
【判断题】奥苏泊尔认为,学校情境中的成就动机主要由认知内驱力、自我提高内驱力和附属内驱力三个方面组成。
A.
正确
B.
错误
查看完整题目与答案
【单选题】能使肾上腺素升压作用翻转的药物是
A.
普萘洛尔
B.
苯海拉明
C.
酚妥拉明
D.
硝苯地平
E.
硝酸甘油
查看完整题目与答案
【单选题】Suppose an income tax is levied on none of the first $1,000, 10% of the next $10,000, and 20% of the remainder of earnings. This type of tax can be defined as:
A.
.    progressive.
B.
.    proportional.
C.
.    regressive.
D.
.    equitable.
查看完整题目与答案
【多选题】克肯达尔效应的实际意义在于？
A.
直接否定了置换型固溶体扩散的换位机制，支持了间隙机制
B.
直接否定了置换型固溶体扩散的换位机制，支持了空位机制
C.
认为在扩散系统中，每一组元都有自己的扩散系数，即分扩散系数
D.
认为是不等价的离子交换造成了此效应。
查看完整题目与答案
【单选题】The remainder of an integer division is accomplished using the ____________ operator.
A.
%
B.
//
C.
mod
D.
rem
查看完整题目与答案
【单选题】During the year ended 31 March 20X6, Lisbon experienced the following transactions or events: (i) Lisbon sold an asset to a finance company and leased it back for the remainder of its useful life. The...
A.
In doing his presentation he should omit any complex issues, so that everybody can understand what he is saying.
B.
He should open his presentation with the advice that some of them may not understand all of it.
C.
He should classify, characterise and present the information clearly and precisely.
D.
He should deliver his presentation just to those who are financially qualified.
查看完整题目与答案
【单选题】以下关于扩散系数的说法，哪一个是错误的：
A.
表面的扩散系数大于晶界的扩散系数。
B.
间隙型固溶体比置换型固溶体容易扩散。
C.
扩散离子性质与扩散截止性质间差异越大，扩散活化能越高。
D.
晶体结构中的原子间的结合力越强，扩散系数越小。
查看完整题目与答案
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