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【单选题】
设随机变量 服从参数为 的泊松分布,且 ,则 =( )
A.
1
B.
2
C.
0.5
D.
4
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参考答案：
举一反三
【单选题】According to the study of the effects of getting laid-off, we can learn that
A.
unemployment can damage economic growth.
B.
the laid-off workers are usually forced to quit their jobs.
C.
35% of laid-off workers are not willing to be engaged in social activities.
D.
workers who were forced to lose jobs might refrain from social activities in their future life.
查看完整题目与答案
【简答题】设f（x）=log a g（x）（a＞0且a≠1） （1）若 f(x)=lo g 1 2 (3x-1) ，且满足f（x）＞1，求x的取值范围； （2）若g（x）=ax 2 -x，是否存在a使得f（x）在区间[ 1 2 ，3]上是增函数？如果存在，说明a可以取哪些值；如果不存在，请说明理由． （3）定义在[p，q]上的一个函数m（x），用分法T：p=x 0 ＜x 1 ＜…＜x i-1 ＜x i ＜…...
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【单选题】在 E xcel 2010中,为了使以后在查看工作表时能了解某些重要的单元格的含义,则可以给其添加( )。
A.
批注
B.
公式
C.
特殊符号
D.
颜色标记
查看完整题目与答案
【判断题】人的一般需要是指人们在个体生活和社会生活中,感到某种缺乏,而力求获得满足的一种心理状态。
A.
正确
B.
错误
查看完整题目与答案
【单选题】We can learn from the passage that______.
A.
American films are mostly poor comedies
B.
it is good manners to wear blue jeans to a wedding
C.
Americans usually wear formal clothes in a theater
D.
to dress formally makes others feel you are not easy to get on with
查看完整题目与答案
【单选题】中机型船的特点是____。①空载吃水差较小；②重载吃水差较大；③货舱舱容浪费较大
A.
①②
B.
②③
C.
①③
D.
①②③
查看完整题目与答案
【简答题】(P79) 为吾子之将行也,郑之有【原圃】。 原圃: 7.(P79) 奉不可失,敌不可【纵】。 纵: 8.(P80 )武夫力而【拘】诸【原】。 拘:; 原: 9.(P80 )若【从君惠】而免之。 从君惠: 10.(P83 )(2017.4词28)使人【属】孟尝君,愿寄食门下。 属:
查看完整题目与答案
【单选题】中机型船的特点是________。I空载吃水差较小;II重载吃水差较大;III货舱舱容浪费较大。
A.
Ⅰ,Ⅱ
B.
Ⅱ,Ⅲ
C.
Ⅰ,Ⅲ
D.
Ⅰ,Ⅱ,Ⅲ
查看完整题目与答案
【判断题】需要是指人们在个体生活和社会生活中感到某种缺乏而力求获得满足的一种心理状态。
A.
正确
B.
错误
查看完整题目与答案
【单选题】We can learn from the passage that ______.
A.
higher-degree-holders are surely going to make more money
B.
college graduates in different majors usually get paid differently
C.
a master's degree-holder in social work will surely make more money than a bachelor' s degree-holder in computer science
D.
if one wants to earn $ 4.4 million, he or she has to try to get a professional degree such as a doctor or lawyer
查看完整题目与答案
相关题目：
【单选题】According to the study of the effects of getting laid-off, we can learn that
A.
unemployment can damage economic growth.
B.
the laid-off workers are usually forced to quit their jobs.
C.
35% of laid-off workers are not willing to be engaged in social activities.
D.
workers who were forced to lose jobs might refrain from social activities in their future life.
查看完整题目与答案
【简答题】设f（x）=log a g（x）（a＞0且a≠1） （1）若 f(x)=lo g 1 2 (3x-1) ，且满足f（x）＞1，求x的取值范围； （2）若g（x）=ax 2 -x，是否存在a使得f（x）在区间[ 1 2 ，3]上是增函数？如果存在，说明a可以取哪些值；如果不存在，请说明理由． （3）定义在[p，q]上的一个函数m（x），用分法T：p=x 0 ＜x 1 ＜…＜x i-1 ＜x i ＜…...
查看完整题目与答案
【单选题】在 E xcel 2010中,为了使以后在查看工作表时能了解某些重要的单元格的含义,则可以给其添加( )。
A.
批注
B.
公式
C.
特殊符号
D.
颜色标记
查看完整题目与答案
【判断题】人的一般需要是指人们在个体生活和社会生活中,感到某种缺乏,而力求获得满足的一种心理状态。
A.
正确
B.
错误
查看完整题目与答案
【单选题】We can learn from the passage that______.
A.
American films are mostly poor comedies
B.
it is good manners to wear blue jeans to a wedding
C.
Americans usually wear formal clothes in a theater
D.
to dress formally makes others feel you are not easy to get on with
查看完整题目与答案
【单选题】中机型船的特点是____。①空载吃水差较小；②重载吃水差较大；③货舱舱容浪费较大
A.
①②
B.
②③
C.
①③
D.
①②③
查看完整题目与答案
【简答题】(P79) 为吾子之将行也,郑之有【原圃】。 原圃: 7.(P79) 奉不可失,敌不可【纵】。 纵: 8.(P80 )武夫力而【拘】诸【原】。 拘:; 原: 9.(P80 )若【从君惠】而免之。 从君惠: 10.(P83 )(2017.4词28)使人【属】孟尝君,愿寄食门下。 属:
查看完整题目与答案
【单选题】中机型船的特点是________。I空载吃水差较小;II重载吃水差较大;III货舱舱容浪费较大。
A.
Ⅰ,Ⅱ
B.
Ⅱ,Ⅲ
C.
Ⅰ,Ⅲ
D.
Ⅰ,Ⅱ,Ⅲ
查看完整题目与答案
【判断题】需要是指人们在个体生活和社会生活中感到某种缺乏而力求获得满足的一种心理状态。
A.
正确
B.
错误
查看完整题目与答案
【单选题】We can learn from the passage that ______.
A.
higher-degree-holders are surely going to make more money
B.
college graduates in different majors usually get paid differently
C.
a master's degree-holder in social work will surely make more money than a bachelor' s degree-holder in computer science
D.
if one wants to earn $ 4.4 million, he or she has to try to get a professional degree such as a doctor or lawyer
查看完整题目与答案
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