题目内容

【题目】阅读下列材料,回答题。

都市农业是指地处都市及其延伸地带,紧密依托并服务于都市的农业。都市农业是以生态绿色农业、观光休闲农业、市场创汇农业、高科技现代农业为标志,以农业园艺化、设施化、工厂化生产为主要手段,以市场需求为导向的高质、高效和可持续发展相结合的现代农业。北京发展都市农业的有利区位条件是

A.外来人口数量大,劳动力成本低

B.航空、铁路、公路构成便捷的交通网

C.市场需求量大,消费水平高

D.土地资源丰富,地价水平较低

【答案】C

【解析】

试题分析:北京人口多,市场市场需求量大;经济发达,消费水平高;在城市周边地区发展都市农业,交通条件好,但不需要航空、铁路等;都市农业是现代农业,不需要大量的廉价劳动力;城市周边地区地价也较高,土地资源有限。选C正确。

练习册系列答案
相关题目

【题目】(河南省焦作市2016届高三第一次模拟)阅读理解。

Scientists have discovered thirteen kinds of vitamins. They say vitamins help to carry out chemical changes within cells. If we do not get enough of the vitamins we need in our food, we are at risk of developing a number of diseases. Which foods should be eaten to keep us healthy? Let us look at some important vitamins.

Vitamin A helps prevent skin and other tissues from becoming dry. People who do not get enough vitamin A cannot see well in darkness. Vitamin A is found in fish liver oil and the yellow part of eggs.

Vitamin B-1 is also called thiamine. Thiamine changes starchy(含淀粉的)foods into energy. Thiamine is found not just in whole grains like brown rice, but also in beans and peas, nuts, and meat and fish.

Vitamin B-12 is needed so folic acid can do its work. Together, they help produce red blood cells. Folic acid has been shown to prevent physical problems in babies when taken by their mothers during pregnancy. Vitamin B-12 is found naturally in foods like eggs, meat, fish and milk products. Vitamin B-12 is found in green leafy vegetables and other foods, like legumes and citrus fruits (柑橘类水果).

Vitamin C is needed for strong bones and teeth. The body stores little vitamin C. So we must get it every day in foods such as citrus fruits, tomatoes and uncooked cabbage.

Vitamin D prevents the children’s bone disease rickets (佝偻病). Ultraviolet light from the sun changes a substance in the skin into vitamin D. Fish liver oil also contains vitamin D.

Vitamin K is needed for healthy blood. It thickens the blood around a cut to stop bleeding. It can also be found in pork products, liver and in vegetables like cabbage, kale and spinach (菠菜).

Vitamins are important to our health. A lack of required vitamins can lead to health problems.

【1】What is the main idea of the passage?

A. There are thirteen kinds of vitamins in total.

B. One can not live without enough vitamins.

C. Vitamins can carry out chemical changes within cells.

D. Enough vitamins are vital to keep healthy.

【2】 Women who wish to become mothers should take in ________.

A. vitamin A B. vitamin B-1

C. vitamin B-12 D. vitamin C

【3】What can change a substance in the skin into vitamin D?

A. Fish liver oil.

B. Ultraviolet light from the sun.

C. Fresh milk drunk by people.

D. Doing a certain amount of exercise.

4According to the passage, taking in enough vitamin C can ________.

A. make our eyesight better

B. help to stop bleeding

C. make our bones and teeth strong

D. help produce red blood cells

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网