更多"[单选题]If the special flight fails to"的相关试题:
[单选题]When the weather at the landing airport or alternate airport is _______ , a second alternate airport is to be specified.
A.below minimum
B.at marginal level
C.changeable
D.unavailable
[单选题]Narita Departure, JAL356, 2000ft _______ .
A.climb
B.climbing
C.descend
D.descending
[单项选择]Hawthorne generally concerned himself with such issues as ______ in his fictions.
[单项选择]The Enlightenment thinkers are deeply concerned about _______.
A. what kinds of communities people are born into
B. the various traits of races and cultures
C. what makes people so various
D. what brings people together
[单项选择]The passage is primarily concerned with discussing
A. how anthropologists ought to explain the origins of the trade relationship between foragers and agriculturalists
B. why it is difficult to measure the amount of time necessary for the disappearance of carbohydrate-rich plant species in the rain forest
C. why a particular account of the unavailability of carbohydrates to rain forest foragers is inaccurate
D. what ought to be included in any account of the effects of forager peoples on rain forest ecology
E. (E) what data are most relevant for an accurate account of the relations between rain forest foragers and agriculturalists
[单项选择]The author is primarily concerned with describing ______.
A. research into tropical-forest biology on Barco Colorado Island
B. how the whole ecosystems can depend on the survival of a single species
C. the life cycle Of the fig wasp
D. the importance of forests to the human race
[单项选择]With what topic is the passage primarily concerned
A. The importance of snowfall for Mount Rainier.
B. The steam caves of Mount Rainier.
C. How ice covers are destroyed.
D. The eruption of Mount Saint Helens in 1980.
[单项选择]The author suggests that economics is concerned with______.
A. explaining to bankers the consequences of price changes
B. giving the same financial considerations as banking
C. trying to understand why some prices rise faster than others
D. understanding the effect of relative price changes
[单项选择]With what topic is paragraph 4 mainly concerned
A. The importance of management techniques.
B. The complexity of hospital design.
C. Uses of computers in industry.
D. Applications of the systems approach.
[单项选择]The passage is primarily concerned with problems of __________.
A. music and art
B. society and population
C. history and economics
D. theology and philoslphy
[单项选择]Consumers are concerned about the changes in package size, mainly because______.
A. they hate to see any changes in things they are familiar with
B. the unit price for product often rises as a result
C. they have to pay for the cost of changing package sizes
D. this entails an increase in the cost of packaging
[单项选择]Why are Democrats and some Republicans concerned that the project will erode civil liberties
[单项选择]
Schedule control is concerned with all the followings except （）.
[单项选择]
As if to make up for the departure of the glamorous Hale-Bopp comet, astronomers have re- leased a flurry of reports on other celestial matters. Refined measurements of the ages of stars appear to be resolving the seeming paradox in which some stars appeared to be older than the universe it- self. A new observation offers the first concrete clues regarding the nature of the mysterious flashes of energetic radiation known as gammaray bursts.
But by far tile most startling and tentative finding is that the universe has a preferred orientation. Such directionality would challenge one of the basic tenets of physics and astronomy, taken for granted by Einstein, Newton and even Kepler. These giants all assumed that space possesses a property called rotational symmetry: spin a chunk of cosmos sideways or flip it upside down, and measurements of events within it yield precisely tile same results.
In the April 21, 1997 issue of physical Review Letters, however, Borge Nodla
A. rotational symmetry.
B. charged particles.
C. radiation flashes.
D. frequent twists.
