A.renal
B.adenoid
C.adrenal gland
D.adrenalone
A、fibrinous exudate
B、fibrinoid necrosis
C、vegetation
D、Aschoff body
A.vegetation
B.arboretum
C.drainage
D.forest
The island had______.
A.a lot of vegetation but no trees, bushes or flowers
B.rio vegetation(植物) or wildlife
C.plentiful supplies
D.a few birds and animals
NASA can tell that vegetation is growing back because of ______.
A.a bright, white light that is reflected
B.little tiny trees that are growing
C.vegetable gardens that are planted
D.a light, pinkish view from space
The scientist from the French space agency did all the following things except ______.
A.taking further photos
B.taking soil samples
C.planting vegetation in the soil
D.taking samples of vegetation
A.climate
B.lay of the land itself
C.local vegetation
D.kind of soil and rock
A.Fire has destroyed much of the original vegetation, so mudflows are now more likely.
B.More damage to vegetation is caused by brush fires than by any other natural event.
C.It is necessary to remove dead and damaged vegetation after a mudflow but not after a fire.
D.Fires occur frequently in areas where the vegetation has been cleared for development.
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