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【多选题】
抽样估计中的抽样误差A.
是不可避免要产生的
B.
是可以通过改进调查方式来消除的
C.
是可以事先计算出来的
D.
是只能在调查结束后计算的
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反馈参考答案：
举一反三
【单选题】人体各组织对X线的衰减，由大变小的顺序是
A.
骨、脂肪、肌肉、空气
B.
骨、肌肉、脂肪、空气
C.
脂肪、骨、肌肉、空气
D.
肌肉、骨、脂肪、空气
E.
肌肉、脂肪、骨、空气
【单选题】According to the passage, it is true to say that ______.
A.
the public could share the artist's feelings through their choice of artistic creation sub-jects
B.
the painter should not choose to paint ugly things
C.
contemporary artists are completely different from other artists
D.
all artists are teaching the public consciously
【单选题】Carter and a man named John Artis had been charged with a triple murder at the Lafayette Grill in Paterson, New Jersey , in 1966. The following year Carter and Artis were found guilty of the murders,
A.
He was just filled with all these feelings
B.
putting the song in a total storytelling mode.
C.
I think the first step was
D.
about Hurricane. He couldn't make the first step.
【单选题】When Louis Nevelson works, she _________
A.
can carve anything into a great piece of artistic work
B.
refuses to make sculpture work for churches
C.
doesnt confine her talents into any specific categories
D.
always has her religious belief in mind
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