更多"Many rare species of plants and ani"的相关试题:
[单项选择]Many rare species of plants and animals are threatened with ______ with the worsening of environment and mass hunting.
A. migration
B. extinction
C. distinction
D. distraction
[单项选择]Practically all species of animals communicate either through sounds or through a large repertory of soundless codes.
A. Simultaneously
B. Almost
C. Absolutely
D. Basically
[单项选择]{{U}}Practically{{/U}} all species of animals communicate either through sounds or through a large repertory of soundless codes.
A. Simultaneously
B. Almost
C. Absolutely
D. Basically
[单项选择]What will be the possible threat to plants in the future
A. Storms and floods.
B. Disease and fire.
C. Less space for their growth.
D. Rapid increase of the animal population.
[单项选择]If too many of these rare animals are killed, their kind will _______.
A. die away
B. die down
C. die out
D. die from
[单项选择]Many people believe that our species ______ threatened with extinction.
A. is
B. are
C. are to be
D. used to be
