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A．identifying
B．determining
C．judging
D．verifying
答案
更多“Whatever the collection consists of, there is always something to do in connection with it”相关的问题
第1题
A．They stare at the walls.
B．They collect stamps.
C．They attend evening classes.
D．They do whatever they are interested in.
第2题
Life on Other Planets
In 1961, scientists set up a gigantic, sensitive apparatus to collect radio waves from the far roaches of space, hoping to discover in them some mathematical pattern indicating that the waves were sent out by other intelligent beings. The first at tempt failed; but someday the experiment may succeed.
But is there intelligent life？ Life that has reached the stage of being able to send radio waves out-into space in a planned pattern？ Our own planet may have been in existence for five billion years and may have had life on it for two billion, but it is only in the last fifty years that intelligent life capable of sending radio waves into space has lived on earth. From this it might seem that even if there were no technical problems involved, the chance of receiving signals from any particular earth-type planet would be extremely small.
This does not mean that intelligent life at our level does not exist somewhere. There is such an unimaginable number of stars that, even with only a small chance, it seems certain that there are millions of intelligent life forms scattered through space. The only trouble is, none may be within hailing distance of us. Perhaps none ever will be; perhaps the huge distances that separate us from our fellow inhabitants of this universe will forever remain too great to be conquered. And yet it is conceivable that someday we may come across one of them or, frighteningly, one of them may come across us. What would they be bike, these extraterrestrial creatures？
Surely, it would seem, there is no way of telling. Here on earth alone, life has developed in many directions, taking on forms that could scarcely be invented by the wildest imagination if they were not already known to exist.
Who would dream that a mouse could fly if he had never seen a bat？ Who would predict blind lizards living in caves, or worms living in the intestines of other creatures？ Consider the giraffe, the humming-bird, the redwood tree, the Venus' flytrap, and see whether you can imagine any limit to various forms of life. Then how can anyone predict anything at all a bout extraterrestrial beings？
Ah, but all these variations and modifications that exist on earth are in some ways only superficial. In the chemist's test tube, all amazing differences in life forms vanish when we consider the basic similarity of those life forms, which is neither exciting nor amazing. Whatever appearance earth creatures may have, they are all made up of the same kinds of complex molecules; with minor variations, they all make use of the same chemical machinery.
For all its wonderful differences, life on earth is merely an imaginative variation on a single chemical structure. Life on any earthlike planet may prove to be similar.
As we understand life, it consists of molecules large enough and complex enough to meet the infinitely flexible requirements of living tissue. The molecules must be stable enough to retain their structure under some conditions, and unstable enough to change kaleidoscopically under other conditions. In living things on earth, the most important molecules of this type are the proteins, and as far as we know, nothing will substitute for them.
Furthermore, the changes these proteins undergo in the process of living can only take place against a watery back ground. Life began in the oceans, and even the various forms of land life are still from 50 to 80 percent water.
The chemical structure, then, upon which life is based, here and possibly on all earth-type planets, is protein-in water. If we are ever to meet up with creatures from an earth-type planet, we may not be able to predict their appearance, but we can predict that, whatever their shape, they will very likely be protein-in-water.
But what about life on planets that are not like the earth？ Wh
A．Y
B．N
C．NG
第3题
Taxes in Early America
Taxes have always left a sour taste in the mouth of American citizens. This national hatred for taxes dates back to the tax burden placed on the American colonies by Great Britain. Colonists were taxed for every consumer goods, from tea and tobacco to legal documents. This "taxation without representation" led to many revolts, such as the Boston Tea Party, in which colonists dumped tea into the Boston Harbor rather than pay the tax on it.
Although the American colonists fought for independence from British rule and British taxes, once the United States government formed, its main source of revenue was derived from placing customs and excise taxes on the same items that were taxed by Great Britain. In 1812, in an effort to support an expensive war effort, the U.S. government imposed the first sales tax, which was placed on gold, silverware, jewelry and watches. In 1817, internal taxes were terminated and the government relied on tariffs to support itself. It wasn't until 1862 that the United States imposed the first national income tax.
To support the Union Army, Congress passed tax laws in both 1861 and 1862. The office of Commissioner of Internal Revenue was established by the Tax Act of 1862, which stated that the commissioner would have the power to levy and collect taxes. The office was also given the authority to seize property and income in order to enforce the tax laws. These powers remain pretty much the same today, although the IRS (Internal Revenue Service) will tell you that enforcement tactics have been toned down a bit.
In 1863, the federal government collected the first income tax. This graduated tax was similar to the income tax we pay today. Those who earned $ 600 to $ 10,000 per year paid at a rate of 3 percent. A higher rate was paid by those who earned in excess of $ 10,000. A fiat-rate tax was imposed in 1867. Five years later, in 1872, the national income tax was abolished altogether.
Inspired by the Populist Party's 1892 campaign, Congress passed the Income Tax Act of 1894. This act taxed 2 percent of personal income that was more than $ 4,000, which only affected the wealthiest citizens. The income tax was short-lived, .as the U.S. Supreme Court struck it down only a year after it was passed. The justices wrote that, in their opinion, the income tax was unconstitutional because it failed to abide by a Constitutional guideline. This guideline required that any tax levied directly on individuals must be levied in proportion to a state's population.
In 1913, the income tax became a permanent part of the U. S. government. Congress avoided the constitutional roadblock mentioned above by passing a constitutional amendment. The 16th Amendment reads, "The Congress shall have power to lay and collect taxes on incomes, from whatever source derived, without apportionment among the several states, and without regard to any census or enumeration."
Alternative: Flat Tax Or National Sales Tax
Since the 16th amendment was passed in 1913, there has been no shortage of people proposing new tax systems since then. If you follow presidential campaigns, there are usually talks from some of the candidates on revising the tax system. Here's a quick look at two of these alternative tax p
A．Y
B．N
C．NG
第5题
In the US and Britain, there is a policy to allow the police to collect DNA of criminals.
A．正确
B．错误
第6题
Jim enjoys ______stamps.
A．to collect
B．collecting
C．collect
第7题
The scientists began to accumulate data.
A collect
B handle
C analyze
D investigate
第8题
A.connection
B.connect
C.collection
D.collect
第9题
2 The scientists began to accumulate data.
A handle B collect C analyze D investigate
第10题
A．He must ask for the agreement of the landlord.
B．He must collect the entire luggage in the house.
C．He must have a discussion with his roommate.
D．He must pay off the rent fee to the landlord.
