更多"Grasses and flowers in desert are a"的相关试题:
[单项选择]Grasses and flowers in the desert whose life cycles are short shows their ability to adapt to the quick disappearance of rainwater there after it falls in spring.
[单项选择]The most ______ organisms will be able to survive in the radically changing environment.
A. adaptable B. acceptable C, adjustable D. adoptable
[单项选择]Winter is the toughest season for grasses and flowers to survive in desert.
[单项选择]People cannot survive without plants.
[单项选择]South American flamingos can survive in temperatures — above the freeing point.
A. ( that fewer degrees
B. ( if few degrees
C. ( only a few degrees
D. ( when fewer degrees
[单项选择]Desert ______.
A. get very little rain
B. never have any plants or animals in them
C. can all be turned into good land before long
[单项选择]What do most desert animals do at night
A. They are active in their search for food and water.
B. They go underground to find food.
C. They build new shady place to avoid the coming day’s sun rays.
D. They take a rest in the cool and safer darkness.
[单项选择]Desert perennials lose their leaves after the rainy season just as trees lose theirs in wetter climates before winter arrives, but the reasons for this feature are different.
[单项选择]The internal temperature of a large desert mammal is lowest______.
A. just before sunrise
B. just after drinking
C. just after sunset
D. in the middle of the day
[单项选择]To survive in the intense trade competition between countries, we must______ the qualities and varieties of products we make to the world-market demand.
A. improve
B. enhance
C. guarantee
D. gear
