更多"Animal migration is a seasonal or p"的相关试题:
[单项选择]Animal migration is a seasonal or periodic movement of animals in response to changes in climate or food ______, or to ensure reproduction.
A. alternation
B. availability
C. utilization
D. capacity
[单项选择]Scientists learned about the barred owl migration by ______.
A. decoding spotted owl sounds
B. feeding mice to the owls
C. monitoring spotted owl populations
D. researching the Internet
[单项选择]What is Animal Hospital
A. A news story.
B. A popular book.
C. A research report.
D. A TV programme.
[单项选择]With legal migration, governments need to persuade voters that they are accepting immigrants who will be ------- for the country, rather than those who will ------- drain resources.
A. beneficial … merely
B. jingoistic … withal
C. exotic … constantly
D. amusing … ungraciously
E. (E) helpful … seldom
[单项选择]According to Kingsley Davis, migration occurs as result of the following reasons EXCEPT
A. human adaptability.
B. human evolution.
C. cultural differences.
D. inter-group inequalities.
[单项选择]Seasonal variations in tides are due mainly to the gravitational pull of the moon.
A. merely
B. mostly
C. likewise
D. somewhat
[单项选择]According to Kingsley Davis, migration occurs as a result of the following reasons EXCEPT
A. human adaptability.
B. human evolution.
C. cultural differences.
D. inter-group inequalities.
[单项选择]What were the Mars' seasonal changes in color believed to be
A. The natural changes on the planet.
B. The seasonal cycles.
C. The movement of some life form.
D. The storm of dust in its atmosphere.
[单项选择]What had been the trend of migration during the 20th century
A. The movement from rural to urban areas.
B. The movement from urban to rural areas.
C. The movement from Europe to America.
D. The movement from Africa to America.
[单项选择]Where can you see from the air the migration of the mammals （）
A. In the Pribilot Islands.
B. In the Bering Sea.
C. In southern California.
D. In northern Canada.
[单项选择]According to the periodic table, ______ still some elements undiscovered.
A. there seem to be
B. it seems to be
C. it seems that
D. here seem
[单项选择]Some animal rights organizations advocate the use of extreme means in order to ______.
A. wipe out cruel people
B. stop using animals in the laboratory
C. attack hunters in the wild
D. catch full public attention
