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【判断题】
在多元线性回归模型的基本假定中,随机误差项的均值为0。A.
正确
B.
错误
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举一反三
【单选题】当煤中水份含量在5%至10%之间时，规定平行测定结果的允许绝对偏差不大于0.3%，对某一煤试样进行3次平行测定，其结果分别为7.17%、7.31%及7.72%，应弃去的是（）
A.
7.72%
B.
7.17%
C.
7.72%
D.
7.31%
【单选题】当煤中水份含量在5%至10%之间时,规定平行测定结果的允许绝对偏差不大于0.3%,对某一煤试样进行3次平行测定,其结果分别为7.17%、7.31%及7.72%,应弃去的是:
A.
7.72%
B.
7.17%
C.
7.72%、7.31%
D.
7.31%
【单选题】It is implied in the second paragraph that_____.
A.
there are more rich people than poor people in New York city
B.
it's easy to get rich in New York because the American dream is out in the open for everyone
C.
in New York, the poor resent the rich, and the rich feel remorse about their wealth
D.
the rich and poor both have a place and seem to get along in New York
【单选题】Mr. Kwan feels _____. His plane is late and he has an important meeting in 2 hours.
A.
stressed
B.
unhealthy
C.
energetic
【单选题】Which of the following statements is TRUE?
A.
Young people need more exercise than other people.
B.
One can live longer than others if one has more exercise when one is young.
C.
s need more exercise than children.
D.
People can prolong their life span if they keep exercising.
【单选题】— How many people learn English as a second language? — ________, there are more than 375 million people. [ ]
A.
What's more
B.
In total
C.
At all
D.
First of all
【单选题】--- What’s reported in the news? --- The earthquake yesterday is said _______ more than 5 hundred people.
A.
to kill
B.
that it is
C.
to have killed
D.
that it has killed
【单选题】新征用耕地应缴纳的城镇土地使用税,其纳税义务发生时间是( )
A.
自批准征用之日起满三个月
B.
自批准征用之日起满6个月
C.
自批准之日起满一年
D.
自批准之日起满2年
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