更多"Scientists say it may be five or si"的相关试题:
[单项选择]Scientists say it may be five or six years（）this medicine is tested on human beings.
A. since
B. before
C. after
D. when
[简答题]
Thirty-five years after computer scientists at UCLA linked two bulky computers using a 15-foot gray cable, testing a new way for exchanging data over networks, what would ultimately become the Internet remains a work in progress.
University researchers are experimenting with ways to increase its capacity and speed. Programmers are trying to imbue Web pages with intelligence. And work is underway to re-engineer the net- work to reduce spam and security troubles.
(46) All the while threats loom: critics ware that commercial, legal and political pressures could hinder the types of innovations that made the Internet what it is today.
Stephen Crocker and Vinton Cerf were among the graduate students who joined UCLA professor Len Kleinrock in an engineering lab on Sept. 2, 1969, as bits of meaningless test data flowed silently between the two computers. By January, three other "nodes" joined the fledgling network.
(47) Then came e-mail
[填空题]What word of five letters has six left after you take two away
[简答题]将考生文件夹下FIVE/SIX文件夹中的文件REPORT.TXT复制到考生文件夹下的FIVE/SIX/SEVEN文件夹中。
[简答题]将考生文件夹下FIVE/SIX文件夹中的REPORT.TXT文件复制到考生文件夹下的FIVE/SIX/SEVEN文件夹中。
[简答题](1)将考生文件夹下FIVE/SIX文件夹中的文件REPORT.TXT复制到FIVE/SIX/SEVEN文件夹中。
(2)将考生文件夹下ME/HNE文件夹中的新建一个文件夹DOWN。
(3)将考生文件夹下WANG文件夹中的文件LI.DOC设置为存档和只读属性。
(4)在考生文件夹下START 文件夹中删除文件夹BIGIN。
(5)将考生文件夹下MALTI文件夹中的文件MEDIA.WPS 移动到考生文件夹下SPEAK文件夹中。
[单项选择]Passage Five
You may a ready know that hurricanes are major tropical storms that can cause devastating waves, wind, and rain. They happen during “Hurricane Season”, which is from June lst until November 30th in the Atlantic Ocean and from May 15th until November 30th in the Pacific Ocean.
A storm progresses through four different stages before it is actually considered a hurricane. First is a tropical disturbance, which has thunderstorms and rotating winds, or what scientists call cyclonic circulation. Next is a tropical depression, which is similar to a tropical disturbance, but has winds between 23 and 39 miles per hour. A tropical storm is the next level, which has stronger wind speeds between 40 and 73 miles per hour. Once winds reach 74 miles per hour, the storm is officially classified as a hurricane. The winds pick up energy from the warm surface ocean water.
As a hurricane crosses over land, it begins to dissipate, or break apart and reduce in strength. This is be
A. Tropical depression, tropical disturbance, tropical storm, hurricane.
B. Hurricane, tropical storm tropical depression, tropical disturbance.
C. Hurricane, tropical depression, tropical storm, tropical disturbance.
D. Tropical disturbance, tropical depression, tropical storm, hurricane.
[单项选择]Passage One
Five or six years ago, I attended a lecture on the science of attention. A philosopher who conducts research in the medical school was talking about attention blindness, the basic feature of the human brain that, when we concentrate intensely on one task, causes us to miss just about everything else. Because we can’t see what we can’t see, our lecturer was determined to catch us in the act. He had us watch a video of six people tossing basketballs back and forth, three in white shirts and three in black, and our task was to keep track only of the tosses among the people in white. The tape rolled, and everyone began counting.
Everyone except me, I’m dyslexic (有阅读障碍的），and the moment I saw that grainy tape with the confusing basketball tossers, I knew I wouldn’t be able to keep track of their movements, so I let my mind wander. My curiosity was aroused, though, when about 30 seconds into the tape, a gorilla (大猩猩)came in among the players. She (we later learned
A. the fact that one can’t see what one can’t see
B. seeing one thing while missing all else.
C. keeping track of just about everything
D. the condition of being blind to details
