题目内容
（请给出正确答案）
A．To plant more fast growing trees.
B．To find new materials for making paper.
C．To develop new printers using recycled paper.
D．To encourage printing more quality documents.
安装简答题APP，拍照搜题省时又省心！
更多“A．To plant more fast growing t…”相关的问题
A．To forbid grazing on marginal lands.
B．To plant more trees on marginal lands.
C．To establish good ground cover.
D．To graze animals rotationally.
What's the reason for the fast growth of children's museums？
A．To cultivate their sense of responsibility.
B．To improve family living standards.
C．To provide more social activities for communities.
D．To make their civic and family life more colorful.
Why does the professor suggest that the students refer to their lab workbook？
A．To see the diagram of the experiment
B．To read more about plant growth
C．To find a list of important plant nutrients
D．To locate the instructions for building a tank
Which of the following statements is NOT Professor Plant's suggestions for Michael？
A．to make much more effort in his course work
B．to cut down on his Union activities
C．to turn to the Welfare Office
D．to take part-time jobs for tuition fees
A．To use informative designs that visitors are accustomed to.
B．To employ more logos and accessories to attract visitors.
C．To choose advanced servers and networks to enable the fast loading of the webpage.
D．To pay more attention to the impression of the website at the first sight.
What is the purpose of the limit switch on gravity davits？
A.To cut off the power when the davits hit the track safety stops
B.To stop the davits from going too fast
C.To cut off the power when the davits are about 12 inches or more from the track safety stops
D.None of the above
What is the purpose of this advertisement？
A．To promote healthy diets
B．To sell hamburgers
C．To offer a 15% discount
D．To advise the opening of a new restaurant
A.To allow several sails to be rigged.
B.To catch winds coming from over the hills.
C.To add to the beauty of the basic design.
D.To allow the sails to be raised more quickly.
A typical clay soil is composed of approximately 60 percent actual clay, 20 percent silt, and 20 percent sand. The particles in a sandy soil are so fine that it tends to be compact and interferes with the oxygen supply for plant roots. Water has trouble entering this impervious soil, and runoff is very common during rainfalls.
A typical light sandy soil is composed of approximately 70 percent sand, 20 percent silt, and 10 percent clay. The particles in a sandy soil are comparatively large, permitting water to enter the soil and to pass through it so quickly that it often carries nutrients with it and dries out very rapidly. The texture of sandy soils is generally very difficult to modify because huge amounts of organic material must be added.
A typical loam soil is composed of approximately 40 percent sand, 40 percent silt, and 20 percent clay, making it an ideal garden soil. It is easily worked and retains water and nutrients, which are slowly absorbed by plant roots.
A typical adobe soil is a clay soil present in hot, dry areas of the country and is often very hard and cracked. It has all the disadvantages of a heavy clay soil and, being much drier, is more difficult to correct.
What is the author's main purpose in this passage？
A．To tell gardeners how to modify their soil.
B．To classify soil types on the basis of their composition.
C．To illustrate the effects of soil type on plant growth.
D．To show how water is absorbed by different soil.
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
微信搜一搜
简答题
如搜索结果不匹配，请 
