[单选题]_______ is considered a back-up source of heading information.
A.heading indicator
B.magnetic compass
C.turn coordinator
D.attitude indicator

[单选题]When properly set, _______ is the primary source of heading information.
A.heading indicator
B.magnetic compass
C.turn coordination
D.attitude indicator

[单选题]If a standard rate turn is maintained, how much time would be required to turn to the right from a heading of 090° to a heading of 270°?
A.1 minute
B.2 minute
C.3 minute
D.3.5 minute

[单项选择]The eastern bluebird is considered the most attractive bird native of North America by many bird-watchers.


A. native
B. native with
C. native by
D. native to

[单项选择]

Passage Two
American has long been considered the land of opportunity by those from other countries. Americans, too, believe that the United States provides almost limifiess opportunity for those who want to open businesses on their own.
Today, Americans are still fond of trying their hand at becoming small business people, even though only one out of two survives the first two years. Many of these people start their businesses for the wrong reasons: to get away from the paper work of their present jobs or to exchange the responsibility of their present jobs for freer life styles. But more, not less, paper work and responsibility come with ownership of a small business. John Shuttleworth, owner of the recently successful life-ecology news magazine Mother Earth, reports having had to work sixty hours straight in order to bring out the first issue.
John Shuttleworth waited years after conceiving the idea for Mother Earth before he attempted to put out
A. borrowed money
B. waited for a good time to open his business
C. developed an inadequate plan
D. studied, prepared a plan, and trained himself

[单项选择]

Passage Three
Considered as a continuous body of fluid, the atmosphere is another kind of ocean. Yet, in view of the total amount of rain and snow on land areas in the course of a year, one of the most amazing water facts is the very small amount of water in the atmosphere at any given time. The volume of the lower seven miles of the atmosphere--the realm of weather events- is roughly four times the volume of the world’s oceans. But the atmosphere contains very little water. It is chiefly in the form of invisible vapor, some of which is carried over land by air currents. If all vapor suddenly fell from the air onto the earth’s surface, it would form a layer only about one inch thick. A heavy rainstorm on a given area may use up only a small percentage of the water from the air mass that passes over. How, then, can some land areas receive more than 400 inches of rain per year How can several inches of rain fall during a single storm in a few minutes or h
A. the atmosphere has a lot of water in it when it circulates
B. the water in the atmosphere is purer than that in the world's oceans
C. the amount of water in the atmosphere is greater than that in the oceans in the world
D. the small amount of water in the atmosphere plays an important role in the yearly rainfall

[单项选择]Ethnology, usually considered a branch of cultural anthropology, is often defined as the scientifically study of the origin and functioning of humans and their culture.

[单项选择]Madonna and Michael Jackson are not considered heroes because ______.


A. they are not clear about the principles they should follow
B. they are popular only among certain groups of people
C. their primary concern is their own financial interests
D. their performances do not improve their fans morally

[单项选择]The workman considered the mouse a gentleman because ________.


A. it was a clever mouse
B. it was a male mouse
C. it was ready to help the female mouse no matter what happened
D. it could sense the gentle press that made the female mouse squeak

[单项选择]The meaning of language was considered as something ______ in traditional semantics.


A. contextual
B. natural
C. intrinsic
D. logical

[单选题]CTL:Set heading _______ .
A.one hundred and ninety degrees
B.one niner zero
C.one hundred and ninety
D.one nine zero

[单项选择]According to the author, Picasso is considered as an "eagle" in the world of art because __________.


A. his art goes beyond that of others and he was brave to explore a new world unknown to others
B. the great artist, Michelangelo, said Picasso merited the name
C. Picasso ranks among the greatest artists and was among the pioneers who created the Cubist art
D. he tried to illuminate the world and helped men to see life more clearly