更多"The velocity of escape is about ___"的相关试题:
[单项选择]Has the company devised an escape system and fire fighting procedures so far
A. Yes, the company has done so because it is an order.
B. Of course, the company has done so although it is reluctant.
C. No, the company has not yet done it.
D. We could not judge from the passage.
[单选题]The lines of equal wind velocity are called _______ .
A.isobars
B.isotherms
C.isobaths
D.isogonic lines
[单选题]The relationship between velocity n, frequency ¦ and wave length l of electric wave spread is .
A.n=l/¦
B.n=lצ
C.n=¦/l
D.n=2¦/l
[单项选择]How fast will a rocket go to escape completely from the Earth's gravity ______
A. Seventy miles per second.
B. Seven thousand miles per hour.
C. Twenty-five thousand miles per second.
D. Twenty-five thousand miles per hour.
[单项选择]A) hide C) break
B) separate D) escape
A. hide
B. separate
C. break
D. escape
[单项选择]If you want to learn about the differences about people in the world, you _________.
A. should know the ways to study other lands
B. should know the four big reasons given in the passage
C. may study the different types of clothing people wear
D. may be surprised by the ways people wear hats
[单选题]_______ is a deflective force that is created by the difference in rotational velocity between the equator and the poles.
A.Friction
B.Coriolis
C.Gravity
D.Pressure gradient force
[单项选择]Since you have broken the law, you won't escape ______.
[单选题]Lift is proportional to the square of the airplane’s velocity. If an airplane’s speed is doubled, lift increases _______ .
A.two-fold
B.three-fold
C.four-fold
D.eight-fold
[单选题]Lift is proportional to the square of the airplane’s velocity. If an airplane’s speed is reduced by one half, lift _______ .
A.is doubled
B.increases four fold
C.is decreased to one half of the previous value
D.is decreased to one quarter of the previous value
[单选题]The basic principle of pressure differential, also known as _______ , says “as the velocity of a fluid (air) increases, its internal pressure decreases”.
A.Bernoulli’s principle
B.Newton’s principle
C.Bernoulli’s law of motion
D.Newton’s law of motion
[单项选择]The author is talking about
A. intergenerational justice.
B. unfair rectification.
C. individual prospects.
D. economic problems.
[单项选择]What is this text about
[单项选择]The passage is mainly about
A. computer crimes
B. banking via computer
C. computer errors
D. computer businesses
[单项选择]What is true about Johnny
[单项选择]What is this website mainly about
A. Rules that the students should obey in the classroom.
B. Rules that the visitors should obey in the park.
C. Rules that the audience should obey in the cinema.
[单项选择]What is this passage mainly about
A. How much money you should deposit in a bank.
B. What identification you should provide to open an account.
C. What you should do when you study in America.
D. How you can open a checking account.
[单项选择]What can we learn about African
A. A．com It may be financially mediocre to Time Warner.B. It is maintained by Gates for Time Warner.C. It becomes a sister website of America Online.D. It is meant for the U. S. general publi
[单项选择]What is the talk mainly about
A. Competition in business.
B. Government grants.
C. A type of economic policy.
D. International transportation practices.
