植物生长（plant growth)

植物生长调节剂(plant growth regulator)

植物生长延缓剂(plant growth retardants)

植物生长抑制剂(plant growth inhibitots)

植物生长物质(plant growth substances)

植物生长调节剂(plam growth regulators)

What is the main idea of the last paragraph？

A．How the banana plant produces its fruit.

B．How a sucker plant is called a pup.

C．The death of mother plants.

D．The growth of sucker plants.

A.植物与硬质景观是一种相互楔入的结构

B.根据场地的实际功能和造景要求，有效地通过缝隙结构避免践踏，保护植物的生长

C.体现了丰富的肌理变化

D.体现了单一的肌理变化

E.表达了人工与自然的趣味契合关系

A.为直根性植物，根系不很发达，无主根，故用小盆、浅盆栽植比用大盆、深盆生长发育得更好

B.最适合的生长温度为20-30℃

C.忌强光直射，因此最好将其植于遮荫网下

D.喜肥,每周施肥一次

Brundtland report states that " The loss of plant and animal species can greatly limit the options of future generations; so sustainable development requires the conservation of plant and animal species". What, all of them？ At what price？ ... At another point the Brundtland report says that economic growth and development obviously involve changes in the physical ecosystem. " Every ecosystem everywhere cannot be preserved intact. " Well, thats a relief. But how can it be made consistent with the earlier objective？ Does it mean that it is all right to deprive some people in some parts of the world of a piece of their ecosystem but not others？ What justification is there for this discrimination？

植物多肽激素(plant polypeptide hormone)