题目
A. Congestion avoidance
B. Windowing
C. Cut-through
D. Buffering
E. Load Balacing
F. Fast Forward
第1题
You don't need to describe her. I ______ her several times.
A.had met B.have met C.met D.meet
第2题
A.had met
B. have met
C. met
D. meet
第3题
A.Entrepreneurs need to be comfortable with the process of evaluating their own performance.
B.Entrepreneurs are never satisfied with status quo.
C.It’s important to surround yourself with people smarter than you, and to listen to ideas that aren’t yours.
D.Entrepreneurs fail down and pick themselves up until they get it right.
第4题
第5题
A.Use the DESCRIBE command on the EMP_DEPT_VU view.
B.Use the DEFINE VIEW command on the EMP_DEPT_VU view.
C.Use the DESCRIBE VIEW command on the EMP_DEPT_VU view.
D.Query the USER_VIEWS data dictionary view to search for the EMP_DEPT_VU view.
E.Query the USER_SOURCE data dictionary view to search for the EMP_DEPT_VU view.
F.Query the USER_OBJECTS data dictionary view to search for the EMP_DEPT_VU view.
第6题
disappears and recuperation begins. The tired mind gathers new energy, and the memory improves.
Some adults require little sleep; others need eight to ten hours in every twenty-four hours. Infants sleep sixteen to eighteen hours daily, the amount gradually diminishing as they grow older. Young students may need twelve hours; university students may need ten. A worker with a physically demanding job may also need ten, whereas an executive working under pressure may manage on six to eight. Many famous people have little sleep. Napoleon Bonaparte, Thomas Edison and Charles Darwin apparently averaged only four to six hours a night.
Whatever your individual need, you can be sure that by the age of thirty you will have slept for a total more than twelve years. By the age you will also have developed a sleep routine: a favorite hour, a favorite position, and a rule you need to follow in order to rest comfortably.
Investigators have tried to find out how long a person can go without sleep. Several people have reached more than 115 hours nearly five days. Whatever the limit, it is absolute. Animals kept awake for from five to eight days have died of exhaustion. The limit for human beings is probably about a week.
(1).By writing this passage, the writer intends to tell us that _______.
A、sleep is important for good mental and physical health
B、a light sleep is as restful as a deep sleep
C、memory is improved during sleep
D、sleep is relatively unimportant for human beings
(2).The amount of the sleep required may ___.
A、tire an individual mind
B、help infants grow older
C、apply pressure on an executive
D、that they didn’t sleep long
(3).If a person is not allowed to follow his own sleep routine, he will probably _____.
A、never fall sleep
B、not sleep well
C、lost his memory
D、begin to daydream
(4).The author implies that if human beings are kept awake for more than a week the result _____.
A、is hard to imagine
B、will probably be a mental breakdown
C、is difficult to describe
D、will probably be dead
(5).From the amount of sleep Napoleon, Edison, Darwin required, we can conclude ___.
A、 that they were famous
B、 that they were executives
C、 hat they were intelligent
D、 that they didn’t sleep long
第7题
A.pointing
B.indicating
C.substituting
D.accompanying
E.spreading
F.extending
G.meaning
H.suicide
I.until
J.unless
K.communicated
L.informed
M.directed
N.consciously
O.intentionally
第8题
第9题
第10题
Why does the author mention the California gold rush?
A.To explain the need for an increased supply of gold.
B.To indicate the extent.of United States mineral wealth.
C.To describe the mood when oil was first discovered.
D.To argue that gold was more valuable than oil.
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