A group of stars which appear close together and form a striking configuration such as a person or animal is a（）.

A . cldump B . cllssvcs C . clshowres D . clstat -o

A . Increasing peer interaction. B . Increasing individual practice. C . Developing language accuracy. D . Providing variety and dynamics.

A . stripe size B . allocation policy C . physical partition size D . number of logical partitio

A . cluster B . shower C . constellation D . galaxy

A . lncreasing peer interaction B . lncreasing individual practive C . Developing language accuracy D . Providing variety and dynamics

A .  AU_SIZE B .  COMPATIBLE·RDBMS C .  COMPATIBLE·ASM D .  DISK_REPAIR_TIME E .  DG_DROP_TIME

A . Cancel-based B . Recovery using a backup control file C . Time-based D . Change-based

A .  If the lost redo log group is ACTIVE， you should first attempt to clear the log file. B .  If the lost redo log group is CURRENT， you must clear the log file. C .  If the lost redo log group is ACTIVE， you must restore，perform cancel-based incomplete recovery，and open the database using the RESETLOGS option. D .  If the lost redo log group is CURRENT， you must restore，perform cancel-based incomplete recovery，and open the database using the RESETLOGS option.

A . Set filesystem recovery method to parallel B . Set filesystem recovery method to sequential C . Set filesystem recovery method to parallel and configure a parent/child relationship for the resourcegroups D . Set filesystem recovery method to sequential and configure a parent/child relationship for the resourcegrou

A . Only the 64bit kernel is supported.  B . Filesystem compression is not supported.  C . Filesystem compression is supported only if the 64bit kernel is running.  D . Filesystem compression is supported running either a 32bit or 64bit kernel.

A . Before sending traffic, it must first join  multicast group 239.1.1.1 by sending an IGMPv2 membership report to the default router on the local subnet. B . It must send an IGMPv2 Request to Send  packet and then wait for an IGMPv2 Clear to Send packet from the IGMPv2 querier router on the local subnet C . It may begin transmitting multicast traffic to the group only when there is no other host transmitting to the group on the local subnet. D . It may transmit multicast traffic to the group at any time.&e

A . Veryoff the volume group B . Unmount any filesystems on the disk C . Remove all physical partitions on the disk D . Unmount mirrored filesystems from the disk

A．People engaged in the business of entertainment. B．Homosexual and bisexual men. C．Intravenous drug users. D．Poor urban residents.

● A program can best be described as: A A grouping of related activities which last two years or more B The first major subdivision of a project C A grouping of projects, similar in nature, which support a product or product line and have no definable end point D A product line E Another name for a project

A.irrelevant B.inferior C.controversial D.abnormal

And they travel through a universe so large that one star seldom comes near to another. For the most part each star makes its journey in complete loneliness, like a ship on an empty ocean. The ship will be well over a million miles from its nearest neighbor. From this it is easy to understand why a star seldom finds another anywhere neat it. We believe, however, that some two thousand million years ago, another star wandering (漫游) through space, happened to come near our sun, Just as the sun and the moon raise tides (潮汐) on the earth, so this star must have raised tides on the surface of the sun. But they were very different from the small tides that are raised in our oceans; a large tidal wave must have travelled over the surface of the sun, at last forming a mountain so high that we cannot imagine it. As the cause of the disturbance (动荡) came nearer, so the mountain rose higher and higher. And before the star began to move away again, its tidal pull had become so powerful that this mountain was torn to pieces and threw off small parts of itself into space. These small pieces have been going round the sun ever since. They are the planets (行星). 第47题：Millions of stars are ________. [A] following a regular path in space [B] moving about without a fixed course [C] seldom wandering about in the universe [D] always travelling together

We believe, however, that some two thousand million years ago, another star wandering through space, happened to come near our sun. Just as the sun and the moon raise tides on the earth, so this star must have raised tides on the surface of the sun. But they were very different from the small tides that are raised in our oceans; a large tidal wave' must have travelled over the surface of the sun, at last forming a mountain so high that we cannot imagine it. As the cause of the disturbance (动荡) came nearer, so the mountain rose higher and higher. And before the star began to move away again, its tidal pull had become so powerful that this mountain was torn to pieces and threw off small parts of itself into space. These small pieces have been going round the sun ever since. They are the planets (行星). Millions of stars are______. A．following a regular path in space B．always travelling together C．seldom wandering about in the universe D．moving about without a fixed course

Using placebos to test drugs sometimes has a surprising result. Researchers say people taking the placebo often report improvements in their health. This is known as "the placebo effect"--pain that is eased or stopped by an inactive substance. In such testing, the drug must perform. better than the placebo to prove that it is effective. Doctors have reported that the placebo effect can be used in treatment. For example, a doctor tells a patient that a new drug will stop the pain in his leg. The pill is only sugar. But the patient does not know that. He takes the pill and says his pain is gone. Scientists are beginning to discover some physical reasons for this reaction in some people. They are learning that much of what people believe to be true comes from what the brain expects is going to happen. If the brain believes a drug will ease pain, the brain may begin physical changes in the body that can cause the expected effect. A recent examination of studies on drugs for depression found that placebos eased the depression about as well as the active drugs. Other studies have explored the power of placebos. A study in Japan involved thirteen people who reacted to the poison ivy (常青藤)plant. Poison-ivy causes red itchy sores(伤痕)on some people who touch it. Each person was rubbed on one arm with a harmless leaf, but was told it was poison ivy. Each person was then touched on the other arm with poison ivy, but was told it was a harmless leaf. All thirteen people developed a reaction on the arm where the harmless leaf touched their skin. Only two reacted to the poison ivy leaves. Doctors and scientists worry that the use of placebos may not always be harmless. They say people can become victims of false doctors and others who use placebos to claim they can cure disease. What do medical researchers usually use to make placebo pills？ A．Ivy leaves. B．Harmless leaves. C．Medicine being tested. D．sugar.

A．The Hawaiian natives. B．American Indian natives. C．Office of Hawaiian Affairs. D．The Ka Lahui group.

When our population is so small that all our labor can be engaged in the group represented by A, productivity of labor (and therefore wages) will be at their maximum. When our population increases so that some of the labor will have to be set to work in group B, the wages of all labor must decline to the level of the productivity in that group. But no employer, without government aid, will yet be able to afford to hire labor to exploit the opportunities represented by C and D, unless there is a further increase in population. But suppose that the political party in power holds the belief that we should produce every thing that we consume, that the opportunities represented by C and D should be exploited. The commodities that the industries composing C and D will produce have been hitherto obtained from abroad in exchange for commodities produced by A and B. The government now renders this difficulty by placing high duties upon the former class of commodities. This meads that workers in A and B must pay higher prices for what they buy, but do not receive higher prices for what they sell. After the duty has gone into effect and the prices of commodities that can be produced by C and D have risen sufficiently, enterprisers will be able to hire labor at the wages prevailing in A and B, and establish industries in C and D. So far as the remaining laborers in A and B buy the products of C and D, the difference between the price which they pay for those products and the price that they would pay if they were permitted to import those products duty-free is a tax paid not to the government, but to the producers in C and D, to enable the latter to remain in business. It is an uncompensated deduction from the natural earnings of the laborers in A and B. Nor are the workers in C and D paid as much, estimated in purchasing power, as they would have received if they had been allowed to remain in A and B under the earlier conditions. When C and D are established, workers in these industries______. A．receive higher wages than do the workers in A and B B．receive lower wages than do the workers in A and B C．are not affected so adversely by the levying of duties as are workers in A and B D．receive wages equal to those workers in A and B

A．A.Word B．B.Category C．C.Morpheme D．D.Phoneme