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【单选题】
下列叙述中错误的是( )A.
镧希元素和锕希元素都是内过渡元素
B.
Y是稀土不是镧系元素
C.
锕系元素都是放射性元素
D.
. 镧系元素中没有放射性元素
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反馈参考答案：
举一反三
【单选题】The reason for the high death rate of oral cancer is _________.
A.
lack of confidence and cooperation with the doctor
B.
lack of an early diagnosis
C.
not treated at an advanced stage
D.
doing nothing at all
【单选题】by whom is a “vote of no confidence” decided?
A.
The two major parties.
B.
The House of Commons.
C.
The House of Lords.
D.
The Prime Minister.
【单选题】_______confidence and the necessary equipment, they failed to rescue the 42 miners trapped in the coal mine. [ ]
A.
Lack of
B.
Lacking of
C.
Lacking
D.
Having lacked
【单选题】A characteristic of all confidence intervals is that:
A.
a confidence interval always increases in width as the level of confidence increases.
B.
a confidence interval cannot include a value of 0.
C.
a confidence interval always increases in width as the sample size is increased.
D.
a confidence interval always includes the population parameter.
【单选题】Real confidence comes from knowing and accepting yourself—your strengths and ______ —in contrast to depending on affirmation from others.
A.
limitations
B.
restraints
C.
boundaries
D.
confinements
【单选题】A characteristic of all confidence intervals is that:
A.
a confidence interval always includes the population parameter.
B.
a confidence interval always increases in width as the sample size is increased.
C.
a confidence interval cannot include a value of 0.
D.
a confidence interval always increases in width as the level of confidence increases.
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