一道概率题,求期望X分布列-1,0,1对应0.3,0.3,0.4,Y=X^4,X和Y独立不?对于不独

下列关于白肋烟的叶面与质量关系的描述不正确的是()。

A.上部叶叶面平展

B.中部叶叶面平展

C.下部叶叶面平展

D.皱缩的烟叶燃烧性好

此题为多项选择题。请帮忙给出正确答案和分析，谢谢！

The study from the Teacher Training College in Bilbao Spain shows that______.

A．some people were much wiser when they were young

B．climate change is a subject that affects every member of human society

C．climate change is the greatest hoax to people from all over the world

D．people pay less attention to the environment when they become older

请帮忙给出正确答案和分析，谢谢！

以下的流程顺序正确的是()

A、退单——核销——退税——报关

B、报关——退单——核销——退税

C、退税——核销——退单——报关

D、核销——退税——报关——退单

根据烟叶在配方中的作用，可将其分()等几个部分。

A.主体烟叶

B.调香味烟叶

C.调劲头和浓度烟叶

D.填充烟叶

此题为多项选择题。请帮忙给出正确答案和分析，谢谢！

Which of the following about Seamus Heaneys poetry creation is TRUE？

A．His poems usually appear in poetry collections.

B．His poems mainly center on the darkness of life.

C．He gives poem readings in public sometimes.

D．His poetry creation is improved after his winning of the Nobel Prize.

请帮忙给出正确答案和分析，谢谢！