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发布时间:2023-10-22 06:20:53

[单项选择]Plants, once thrived on both poles, are becoming almost _________ for the harsh weather.
A. latent
B. prospective
C. intricate
D. extinct

更多"Plants, once thrived on both poles,"的相关试题:

[单项选择]Plants, once thrived on both poles, are becoming almost _________ for the harsh weather.


A. latent
B. prospective
C. intricate
D. extinct
[单项选择]Once they germinate, plants need sunlight to grow.
A. turn green
B. are infected
C. sprout
D. become full-blown
[单项选择]How is food for plants made Food for plants is made ______.
A. from water
B. from the air in the sky
C. from the soil
D. from water, things in the soil and air and sunlight
[单项选择]People cannot survive without plants.
[单项选择]Researchers discovered that plants infected with a virus give off a gas that ______ disease resistance in neighboring plants.
A. contracts
B. activates
C. maintains
D. prescribe
[单项选择]Research discovered that plants infected with a virus give off a gas that______ disease resistance in neighboring plants.
A. contracts
B. activates
C. maintains
D. prescribes
[单项选择]Plants can absorb the carbon dioxide through their ______ during the sunlight hours and produce oxygen which human beings need to survive.


A. slots
B. hoses
C. pores
D. sponges
[单项选择]What has sometimes caused plants to die out


A. Interference from foresters.
B. Variations in climate.
C. The absence of wooded land.
D. The introduction of new type of plants.
[单项选择]While photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.
[单项选择]Which of the following night flowering plants open slowly every night just at sunset
[单项选择]Gardening is the cultivation of plants, usually in or near the home, as a hobby.
A. germination
B. growing
C. classification
D. sowing
[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]Plants will emit an increased amount of heat when they are ______.


A. sprayed with pesticides
B. facing an infrared scanner
C. in poor physical condition
D. exposed to excessive sun rays

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