题目内容 (请给出正确答案)
[主观题]

High concentration of vitamin A may lead to fracture becauseA.elderly people are slow in d

High concentration of vitamin A may lead to fracture because

A.elderly people are slow in digesting vitamin A.

B.the absorption of excessive vitamin A makes people near-sighted.

C.it helps produce cells that weaken the bones of human beings,

D.vitamin A stays in human body for a long timid.

提问人:网友csgogogo 发布时间:2022-01-07
参考答案
查看官方参考答案
如搜索结果不匹配,请 联系老师 获取答案
更多“High concentration of vitamin …”相关的问题
第1题
At first sight, the fate of threatened species might seem a world apart from the economy. Upon closer examination, however, we start to understand the connections between the two. The “good health” of natural systems is a precondition for the “good health” of our social and economic systems. Can one say that a society is thriving when it is exposed to air and water pollution and endures related health problems? Equally, can a society “function” if a large proportion of people are unemployed or cannot make ends meet?

Despite gaps and uncertainties in our understanding, we can see that our world is changing. After 10,000 years of relative stability, the average global temperature is increasing. Although the European Union’s (EU’s) greenhouse gas emissions are declining, fossil fuels release more greenhouse gases into the atmosphere than our land and oceans can absorb. Some regions are more vulnerable to the potential impacts of climate change – and t

1Though different understandings exist, one thing people all recognize is that __________.

A、more greenhouse gases are emitted than our land can absorb

B、the world we are living in is different from what it was before

C、some countries are too vulnerable to adapt to climate change

D、EU countries are producing less greenhouse gas emissions now

2Additional pressure on our natural systems can result from ___________.

A、the change of lifestyles of people in the developed countries

B、the accelerated extinction rates of plant and animal species

C、the improvement of living standards in developing countries

D、the risk of turning our home into an unlivable place for us

3What is a main cause of global biodiversity loss?

A、The disappearance of natural habitats caused by human activities.

B、The increase of the average temperature in the world.

C、The release of excessive greenhouse gases into the atmosphere.

D、The consumption and production patterns we follow today.

4Why are large areas of forests cut down every year according to the passage?

A、To provide wood for urban development.

B、To turn the land into other uses.

C、To grow grass for cattle to eat.

D、To grow crops to meet human demand.

5What point does the writer try to illustrate through the passage?

A、Our quality of life is declining due to environment change.

B、Damage to natural environment should be prevented.

C、Human beings should rethink their activities on earth.

D、Economy and natural systems are closely connected.

点击查看答案
第2题
They found an opportunity to purchase six leather shoes.

A、thousand pairs of

B、thousand pair of

C、thousands of pair

D、thousands pairs

点击查看答案
第3题
听力1. Why do the people have to start early tomor...
听力
1. Why do the people have to start early tomorrow?

A. It is a long way to the Mississippi.

B. They want to watch the sunrise in the mountain.

C. There's only one early bus to the Mississippi in the morning.

2. What color is the ticket for lunch?

A. Pink.

B. White.

C. Yellow.

3. What does the speaker advise the listeners to take along?

A. Umbrellas.

B. Jackets.

C. Sunglasses.

点击查看答案
第4题
Most of the medical terms originated from Latin.
点击查看答案
第5题
The fact that blind people can "see" things using other parts of their bodies apart from their eyes may help us to understand our feelings about color. If they can (1)_____ color differences, then perhaps we, too, are affected by (2)_____ unconsciously. Manufacturers have discovered by (3)_____ that sugar sells badly in green wrappings, (4)_____ blue foods are considered unpleasant, and the cosmetics should never be packaged (5)_____ brown. These discoveries have grown (6)_____ a whole discipline of color psychology that now finds (7)_____ in everything from fashion to interior decoration. Some of our (8)_____ are clearly psychological. Dark blue is the color of the night sky and (9)_____ associated with passivity and calm, while yellow is a day color with (10)_____ of energy and incentive. For primitive man, activity during the day (11)_____ hunting and attacking, while he soon saw as red, the color of blood and rage and the heat that came (12)_____ effort. And green is associated with passive (13)_____ and self preservation. Experiments have (14)_____ that green, partly bemuse of its physiological associations, also has a direct psychological (15)_____, it is a calming color. (16)_____ its exciting connotations, red was chosen as the signal for changer, (17)_____ closer analysis shows that a vivid yellow can produce a (18)_____ basic state of alertness and (19)_____, so fire engines and ambulances in some advanced communities are now (20)_____ around in bright yellow colors that stop the traffic dead.

A.see

B.reckon

C.distinguish

D.sense

点击查看答案
第6题
These differences may be due to the fact participants reporting higher consumption levels were primed to overrate their weekly drinking by the condition they were in.

A、reporting

B、overrate

C、fact

D、may

点击查看答案
第7题
The staple food in Cambodia is _________.
点击查看答案
第8题
Camboida gained its independence from ____________ (the name of a country) in 1953.
点击查看答案
第9题
About the land area, how big is India?

A、It's the biggest.

B、It's the 2nd biggest.

C、It's the 3rd biggest.

D、It's the 5th biggest.

E、It's the 6th biggest.

F、It's the 7th biggest.

G、It's the 4th biggest.

点击查看答案
第10题
In the caste system, which is the highest caste?

A、Brahmin

B、Kshatriya

C、Vaishya

D、Sudra

E、Dalit

点击查看答案
账号:
你好,尊敬的用户
复制账号
发送账号至手机
密码将被重置
获取验证码
发送
温馨提示
该问题答案仅针对搜题卡用户开放,请点击购买搜题卡。
马上购买搜题卡
我已购买搜题卡, 登录账号 继续查看答案
重置密码
确认修改
欢迎分享答案

为鼓励登录用户提交答案,简答题每个月将会抽取一批参与作答的用户给予奖励,具体奖励活动请关注官方微信公众号:简答题

简答题官方微信公众号

警告:系统检测到您的账号存在安全风险

为了保护您的账号安全,请在“简答题”公众号进行验证,点击“官网服务”-“账号验证”后输入验证码“”完成验证,验证成功后方可继续查看答案!

微信搜一搜
简答题
点击打开微信
警告:系统检测到您的账号存在安全风险
抱歉,您的账号因涉嫌违反简答题购买须知被冻结。您可在“简答题”微信公众号中的“官网服务”-“账号解封申请”申请解封,或联系客服
微信搜一搜
简答题
点击打开微信