-
Because of the（）nature of the agreement, I was reluctant to discuss with him in office.
A . confidential
B . delieate
C . secret
D . sophisticated
-
Cable tension for catenary calculations is taken at the（）.
A . chain locker
B . fairlead
C . anchor
D . contact point of chain with seabed
-
Because of the（）nature of the agreement，I was reluctant to discuss with him in office.
A . confidential
B . delicate
C . secret
D . sophisticated
-
During storm conditions on a ship，the mooring tensions should be adjusted so that（）.
A . all mooring lines have a different tension
B . the leeward lines have higher tension than the windward lines
C . the maximum tension of the most heavily loaded line does not exceed the safe working load
D . all horizontal tension forces on the windward lines are no greater than the vertical tension force
-
Natural gas was discovered in Britain in the（）
-
In the constant-tension mooring, the mooring lines holding the ship to the pier will maintain a constant tension even with changes in tide or ship’s draft, （）.
A . without the necessity of manually adjusting the lines
B . without the necessity of automatically adjusting the lines
C . with the necessity of manually adjusting the lines
D . with the un-necessity of automatically adjusting the line
-
During storm conditions on a vessel，the mooring tensions should be adjusted so that（）.
A . all mooring lines have a different tension
B . the leeward lines have higher tension than the windward lines
C . the maximum tension of the most heavily loaded line does not exceed the safe working load
D . all horizontal tension forces on the windward lines are no greater than the vertical tension force
-
More than 30 years ago, （）that the region was rich in natural resources。
A . people did little know
B . people little know
C . little did know
D . little did people know
-
To prevent the riser system from buckling under its own weight，upward tension is provided by the（）.
A . riser stabilizers
B . guideline tensioning system
C . riser tensioning system
D . guideline stabilizer
-
When the anchor is brought to and holding，the horizontal component of anchor cable tensions should equal the（）.
A . displacement tonnage
B . weight forces
C . buoyancy forces
D . environmental force
-
According to Confucius, the natural process of life creation was the _______________.
-
As the natural process of creation of life, Heaven was the source of _______ and the source of ________. This was the “virtue of Heaven.”
-
As the natural process of creation of life, _______ was the source of all living things and the source of all values.
-
The combined effects of those trends and the political tensions point to the breakdown of governments and societies.(2016,6)
-
Physics is ________ to the science which was called natural philosophy in history.
-
If natural selection was to account ______ the evolution of man&39;s higher faculties, as Darwin was convinced it could, then those faculties must have a material basis.
-
To us it seems so natural to put up an umbrella to keep the water off when it rains. But actually the umbrella was not invented as protection against rain. Its first use was as a shade against the sun.
Nobody knows who first invented it, but the umbrella was used in very ancient times. Probably the first to use it were the Chinese, way back in the eleventh century B.C.
We know that the umbrella was used in ancient Egypt and Babylon as a sunshade. And there was a strange thing connected with its use: it became a symbol of honor and authority. In the Far East in ancient times, the umbrella was allowed to be used only by royalty or by those in high office.
In Europe, the Greeks were the first to use the umbrella as a sunshade. And the umbrella was in common use in ancient Greece. But it is believed that the first persons in Europe to use the umbrella as protection against the rain were the ancient Romans.
During the Middle Ages, the use of the umbrella practically disappeared. Then it appeared again in Italy in the late sixteenth century. And again it was considered a symbol of power and authority. By 1680, The umbrella appeared in France, and later on in England.
By the eighteenth century, the umbrella was used against rain throughout most of Europe. Umbrellas have not changed much in style. during all this time, though they have become much lighter in weight. It wasn't until the twentieth century that women's umbrellas began to be made, in a whole variety of colors.
The first use of umbrella was as ______.
A．protection against rain
B．a shade against the sun
C．a symbol of power
D．a symbol of honor
-
It was natural that my pictures_____them.
A．surprised
B．would surprise
C．should surprise
D．would have surprised
-
Sometimes the tension produced by fears is so great that we cannot suppress it. At such times we need to the tension by laughing or crying.
A．discard
B．disperse
C．disguise
D．discharge
-
Political tensions may___the likelihood of a nuclear warA.decrease
B.increase
C.lead to
D.increasing
-
Man&39;s first real invention, and one of the most important inventions in history, was the wheel. All transportation and every machine in the world depend on it. The wheel is the simplest yet perhaps the most remarkable of all inventions, because there are no wheels in nature-no living thing was ever created with wheels. How, then, did man come to invent the wheel？ Perhaps some early hunters found that they could roll the carcass of a heavy animal through the forest on logs more easily than they could carry it. However, the logs themselves weighed a lot.
It must have taken a great prehistoric thinker to imagine two thin slices of log connected, at their centers by a string stick. This would roll along just as the logs did, yet be much lighter and easier to handle. Thus the wheel and axle came into being and with them the first carts.
1、The wheel is important because__________.
A.it was man’s first real invention
B.all transportation depends on it
C.every machine depends on it
D.both B and C
It was remarkable of man to invent the wheel because__________.A.it led to .many other inventions
B.man had no use for it then
C.there were no wheels in nature
D.all of the above
The wheel was probably invented by__________.A.a group of early hunters
B.the first men on earth
C.a great prehistoric thinker
D.the man who made the first cart
The wheel is called__________.A.simple
B.complicated
C.strange
D.unusual
请帮忙给出每个问题的正确答案和分析，谢谢！
-
I don't know how I became a writer, but I think it was because of a certain force in me that had to write and that finally burst through and found a channel. My people were of the working class of people. My father, a stone-cutter, was a man with a great respect and veneration for literature. He had a tremendous memory, and he loved poetry, and the poetry that he loved best was naturally of the rhetorical kind that such a man would like. Nevertheless it was good poetry, Hamlet's Soliloquy, Macbeth, Mark Antony's “Funeral Oration”, Grey's “Elegy”, and all the rest of it. I heard it all as a child; I memorized and learned it all.
He sent me to college to the state university. The desire to write, which had been strong during all my days in high school, grew stronger still. I was editor of the college paper, the college magazine, etc. , and in my last year or two I was a member of a course in playwriting which had just been established there. I wrote several little one-act plays, still thinking I would become a lawyer or a newspaper man, never daring to believe I could seriously become a writer. Then I went to Harvard, wrote some more plays there, became obsessed with the idea that I had to be a playwright, left Harvard, had my plays rejected, and finally in the autumn of 1926, how, why, or in what manner I have never exactly been able to determine. But probably because the force in me that had to write at length sought out its channel, I began to write my first book in London. I was living all alone at that time. I had two rooms--a bedroom and a sitting room--in a litter square in Chelsea in which all the houses had that familiar, smoked brick and cream-yellow-plaster look.
We may conclude, in regard to the author's development as a writer, that his father ________.
A．made an important contribution
B．insisted that he choose writing as a career
C．opposed his becoming a writer
D．insisted that he read Hamlet in order to learn how to be a writer
-
The ratio of divorces to marriages has increased since 19Therefore, there must be a greater proportion of children living with only one natural parent than there was in 19Which of the following, if true, most strongly weakens the inference drawn above？
A．The number of marriages entered into by women twentyfive to thirty-five years old has decreased since 1940.
B．When there is a divorce, children are often given the option of deciding which parent they will live with.
C．Since 1940 the average number of children in a family has remained approximately steady and has not been subject to wide fluctuations.
D．Before 1940 relatively few children whose parents had both died were adopted into single-parent families.
E．The proportion of children who must be raised by one parent because the other has died has decreased since 1940 as a result of medical advances.
-
Later this route was ultimately jeopardized by growing North－South tension. （翻译)
