Questions 11 to 13 are based on the fol

题型:单项选择题

问题:



Questions 11 to 13 are based on the following talk on the Oscar nominations for the 79th Academy Awards. You now have l5 seconds to read Questions 11 to 13.

How were the Best Picture nominees selected

A.By academy members in their corresponding award categories.

B.By the international accounting firm.

C.By voting members of screening committees.

D.By the official Academy Awards.

考点:公共英语(Pets)公共英语五级公共英语五级
题型:单项选择题
已知等比数列{an}的各项均为正数,且a1+2a2=1,a
23
=4a2a6
(1)求数列{an}的通项公式;
(2)设bn=log2a1+log2a2+…+log2an,求数列{
1
bn
}的前n项和.
题型:单项选择题

在TPN期间,长期禁食的病人可产生:()

A.糖代谢紊乱

B.电解质紊乱

C.微量元素缺乏

D.肝胆系统异常

E.肠道屏障受损

题型:单项选择题

878×178-878×45-33×878的值为( )

A.87600

B.87800

C.87400

D.86800

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发动机燃烧室内的温度、压力过高,在燃烧过程中主要生成()排气污染物。

题型:单项选择题

通过物体的中心点、外轮廓的长宽比例,在纸上确定位置,是素描写生的第二步。()

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