灭吴之后范蠡被封为() A.宰相 B. * * C.大夫 D.军师

题型:单项选择题

问题:

灭吴之后范蠡被封为()

A.宰相

B. * *

C.大夫

D.军师

考点:范蠡知识竞赛范蠡知识竞赛题库
题型:单项选择题

已知EF是梯形ABCD的中位线,且EF=9,上底AB=6,那么下底CD=______.

题型:单项选择题

支托的宽度应是()

A.磨牙面颊舌径的2/3

B.磨牙面颊舌径的1/2

C.前磨牙面颊舌径的1/3

D.前磨牙面颊舌径的1/2

E.磨牙面颊舌径的2/3

题型:单项选择题

Space travel is definitely bad for astronauts’ bones, reducing their bone density after only a month of weightlessness, according to French research published on Friday.
Laurence Vico and his fellow workers at St Etienne University called for more research into the effects of microgravity, after their study of 15 astronauts from the Russian MIR station showed bone loss continued throughout space flights.
"Bone loss was especially striking in four astronauts, " the scientists reported in the Lancet Medical Journal.
They measured the Bone Mineral Density (BMD) of bones in the forearm and lower leg of the astronauts who had spent one to six months in space.
The BMD loss was significant in the tibia of the lower leg, a weight-bearing bone, but barely changed in the radius of the forearm. "Our results indicate the need to investigate not only different bones, but also different areas of the same bone since not all sites of the skeleton are similarly affected by space conditions, " they added.
Without gravity the body isn’t bearing any weight so there is no need for calcium which makes bones p, and it becomes empty into the bloodstream.
The research team suggested in future scientists should try to determine if the loss of bone density was only on weight-bearing bones on longer flights, also the possible recovery after returning to Earth.

What cause the BMD loss to astronauts according to this passage

A. The food they eat in space.
B. The drinks they take in space.
C. The temperature in space.
D. The gravity in space.

题型:单项选择题

设有如下通用过程:
Public Sub Fun(a( ),ByVal x As Integer)
For i=1 To 5
x=x+a(i)
Next
End Sub
在窗体上画一个名称为Text1的文本框和一个名称为Command1的命令按钮,然后编写如下的事件过程:
Private Sub Command1_Click( )
Dimsn(5)As Variant
For i=1 To 5
arc(i)=i
Next
n=10
Call Fun(arr( ),n)
Textl.Text=n
End Sub
程序运行后,单击命令按钮,则在文本框中显示的内容是

A.10

B.15

C.25

D.24

题型:单项选择题

The worst thing about television and radio is that they entertain us, saving us the trouble of entertaining ourselves.

When hearing the voices from the famous writers of a long dead past, the author ______.
A. was very excited
B. was very frightened
C. thought that writers shouldn’t read their own books
D. thought the past recording was not of good quality

A hundred years ago, before all these devices were invented, if a person wanted to entertain himself with a song or a piece of music, he would have to do the singing himself or pick up a violin and play it. Now, all he has to do is turn on the radio or TV. As a result, singing and music have declined.
Italians used to sing all the time. Now, they only do it in Hollywood movies, Indian movies are mostly a series of songs and dances trapped around silly stories. As a result, they don’t do much singing in Indian villages anymore. Indeed, ever since radio first came to life, there has been a terrible decline in amateur (业余的) singing throughout the world.
There are two reasons for this sad decline. One, human beings are astonishingly lazy. Put a lift in a building, and people would rather take it than climb even two flights of steps. Similarly, invent a machine that sings, and people would rather let the machine sing than sing themselves. The other reason is that people are easily embarrassed. When there is a famous, talented musician readily available by pushing a button, which amateur violinist or pianist would want to try to entertain family or friends by himself
These earnest reflections came to me recently when two CDs arrived in the mail. They are historic recordings of famous writers reading their own works. It was thrilling to hear the voices from a long dead past in the late 19th century. But today, reading out loud anything is no longer common. Today, we sing songs to our children until they are about two, we read simple books to them till they are about five, and once they have learnt to read themselves, we become deaf. We’re alive only to the sound of the TV and the stereo (立体声音响).
I count myself extremely lucky to have been born before TV became so common: I was about six before TV appeared. To keep us entertained my mother had to do a good deal of singing and tell us endless tales. It was the same in many other homes. People spoke a language; they sang it, they recited it; it was something they could feel.
Professional actors’ performance is extraordinarily revealing. But I still prefer my own reading, because it’s mine. For the same reason, people find karaoke (卡拉OK) liberating. It is almost the only electronic thing that gives them back their own voice. Even if their voices are hopelessly out of tune, at least it is meaningful self-entertainment.

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