首页
登录
职称英语
Scientists have known for some time that certain plants, called hyperaccumu-
Scientists have known for some time that certain plants, called hyperaccumu-
游客
2025-02-06
44
管理
问题
Scientists have known for some time that certain plants, called hyperaccumu-lators, can concentrate minerals at levels a hundredfold or greater than normal. A survey of known hyperaccumulators identified that 75 percent of them amassed nickel; cobalt, copper, zinc, manganese, lead, and cadmium are other minerals of choice. Hyperaccumulators run the entire range of the plant world. They may be
herbs
,
shrubs
, or
trees
. Many members of the mustard family, spurge family, legume family, and grass family are top hyperaccumulators. Many are found in tropical and subtropical areas of the world, where accumulation of high concentrations of metals may
afford
some protection against plant-eating insects and microbial pathogens. [br] The word "
afford
" in the passage is closest in meaning to
选项
A、offer
B、prevent
C、increase
D、remove
答案
A
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3944793.html
相关试题推荐
Scientistshaveknownforsometimethatcertainplants,calledhyperaccumu-
Onlyrecentlyhaveinvestigatorsconsideredusingtheseplantstocleanups
Muchoftheresearchonnutrientdeficienciesisbasedongrowingplantshyd
Muchoftheresearchonnutrientdeficienciesisbasedongrowingplantshyd
Thistypeoflearning,however,iscalledconditioning.[img]2014m9s/ct_etoef
Plantscanprovidefood,shelter,clothing,ormedicine.Whatisonekindof
[img]2018m9s/ct_etoefz_etoeflistz_201808_0044[/img][br]Whatdidscientistslea
ControversyaboutCausingEmotionP1:Thefactthatwereacttocertainexperien
ControversyaboutCausingEmotionP1:Thefactthatwereacttocertainexperien
ControversyaboutCausingEmotionP1:Thefactthatwereacttocertainexperien
随机试题
n=l×19³ColumnAColumnBThenumberofdistinct
Weliveinasocietywherethereisalotoftalkaboutscience,butIwouldsay
[originaltext]M:Hello!Youseemworried.CanIhelpyou?W:Oh,Ifeelsostr
尼泊金酯是国家允许使用的食品防腐剂,它是对羟基苯甲酸与醇形成的酯类化合物。尼泊金
一家公司的比较资产负债表上,在2005年12月31日,净收入为150000美元,
世界文化景观遗产主要由人类创意设计和建造的建筑及其环境景观构成,代表着“自然与人
太阳伤寒证不可能出现的症状是A.恶寒发热 B.有汗脉缓 C.项强痛 D.无
公司信贷业务的交易对象为()。A.自然人 B.银行的合作单位 C.信贷产品
根据烟叶税的有关规定,下列说法正确的是()。A.收购烟叶的单位和个人为烟叶
(2015年真题)关于安全生产事故应急预案的说法,正确的有( )。A.应急预案编
最新回复
(
0
)