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[单选题]

公式“=AVERAGE（C3：C5）”等价于下面公式（）

A.=C3+C4+C5/3

B.=（C3+C4+C5）/3

C.=（C3+C5）/2

D.都不对

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发布时间：2022-12-08

更多“公式“=AVERAGE（C3：C5）”等价于下面公式（）”相关的问题

第1题

由酵母多糖、LPS等多种微生物及其产物从______和______因子开始的补体激活途径称______。它的C3转化酶是_____

_，C5转化酶是______。

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第2题

The way the Earth interacts with the sun s energy can be displayed in a diagram called the

Earths energy budget. It displays the sun s energy that reaches us and【C1】______of that energy is absorbed and reflected【C2】______the earth and its atmosphere. Solar energy reaches earth as electromagnetic radiation.【C3】______the energy reaches earth, some of it is absorbed by the atmosphere, including clouds. Some of it【C4】______it to the earth s surface, and is absorbed by land and oceans. The amount of energy absorbed affects【C5】______first of all. The energy that is not absorbed by the earth or its atmosphere is reflected back out to space in the same wavelengths【C6】______it came to earth. On average, the amount of energy【C7】______is equal to the amount of energy going out. So, we say the earth s energy budget is【C8】______. If more energy was coming in than was going out, the earth s temperature would【C9】______On the other hand, if too much energy is reflected, and not absorbed, we d see a decrease in the earth s temperatures. Of all of the sun s energy that【C10】______the Earth, about 70% is absorbed by the land, ocean, atmosphere and clouds and about 30% is reflected back into space.

【C1】

A．a little

B．how much

C．how many

D．a lot

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第3题

A daily dose of laugher may be good for the heart because it makes blood vessels work more

efficiently. Depression,【C1】______the other hand,can raise the risk of dying from heart failure,a separate study found. The two studies,【C2】______at a meeting of the American College of Cardiology in Florida, show how psychological factors can【C3】______a persons health. " We dont recommend that you laugh and not exercise,【C4】______we do recommend that you try to laugh on regular basis. Thirty minutes of exercise three times a week and fifteen minutes of laugher on a daily【C5】______is probably good for the vascular(脉管)system,"said Doctor Michael Miller. Miller and his colleagues at the school【C6】______ two movies, one humorous,【C7】______stressful, to twenty healthy volunteers and tested the function of their blood vessels. The researchers specifically looked at the lining of the vessels and found that blood【C8】______ was reduced in fourteen of the twenty volunteers after stressful movie cuttings. But blood flowed more freely in nineteen of the twenty volunteers【C9】______ they laugh at fun movie segments. Average blood flow increased 22% during laughter,and【C10】______ 35% during mental stress,the researchers told the meeting.

【C1】

A．at

B．on

C．in

D．by

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第4题

要在某单元格求A1至C3九个数值单元区域的平均值时，应在该单元输入（)。

A、=AVERAGE(A1，C3)

B、=AVERAGE(A1：C3)

C、AVERAGE(A1，C3)

D、AVERAGE(Al:C3)

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第5题

右图中的拓扑序列为（)

A.C1，C2，C6，C7，C5，C4，C3

B.C1，C2，C6，C3，C4，C5，C7

C.C1，C4，C2，C3，C5，C6，C7

D.C5，C7，C4，C1，C2，C6，C3

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第6题

如图，C1=C2=C4=2.0μF，C3=C5=C6=4.0μF．

如图，C₁=C₂=C₄=2.0μF，C₃=C₅=C₆=4.0μF．

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第7题

液化气的主要组分是()。

A.C3

B.C4

C.C4和C5

D.C3和C4

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第8题

通常吡喃型糖C3和（或)C5的化学位移值明显偏大，多数大于80。（)

通常吡喃型糖C3和(或)C5的化学位移值明显偏大，多数大于80。( )

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第9题

膈肌功能障碍提示脊髓损伤的水平在（)。 A C3 B C4 C C5 D C6

膈肌功能障碍提示脊髓损伤的水平在()。 

A C3

B C4

C C5

D C6

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第10题

在C1式中位于C4、C2面上和C1、C3、C5面下的基团为竖键。（)

在C1式中位于C₄、C₂面上和C₁、C₃、C₅面下的基团为竖键。( )

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第11题

Every weekend from September through January, football seems to be the most important even

t in the lives of millions of Americans. Thousands of people【C1】______to stadiums all over the country to【C2】______football games; even【C3】______fans watch the games on the television or listen to broadcasts on the radio. American football is different from the game that is【C4】______as football in most of the rest of the world. International football is called soccer in the United States,【C5】______it is a comparatively new game. It is beginning to become popular,【C6】______it doesnt attract crowds nearly as big as【C7】______that attend games of American football. Soccer games are shown on Television only【C8】______in a while, usually【C9】______a famous player in taking part. American football games are played by both amateurs, who dont get paid, and by【C10】______, who do. Almost【C11】______high school and university in the country has an amateur football team. In addition, there are professional teams in most of the larger cities. Besides football, the most【C12】______games in the United States are baseball and basketball. All of these【C13】______are spectator sports that is only a few people actually take part in them【C14】______many more(into the millions, in fact)only watch【C15】______. Participant sports are not usually as organized as spectator sports ; they include【C16】______activities【C17】______swimming, tennis and golf. Spectator sports give average people the【C18】______to identify with athletes who seem a little larger than life. Football players in the United States and soccer players in other【C19】______have become popular heroes. Football also gives people the opportunity to become a【C20】______of a community to cheer for New York over Chicago, or for San Paulo over Rio de Janeiro.

【C1】

A．travel

B．visit

C．go

D．walk

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