Plant, insect and forest structures of 25 forest communities were investigated in Mao'ershan Experimental Forest Farm and Liangshui Experimental Forest Farm during 1994–1995. The paper used continuum index (C i) ...Plant, insect and forest structures of 25 forest communities were investigated in Mao'ershan Experimental Forest Farm and Liangshui Experimental Forest Farm during 1994–1995. The paper used continuum index (C i) as a parameter, to quantitatively describe forest community succession stage. Relationships between the biodiversity and continuum index of forest community were studied. The annual species and family diversities in forest plant community showed nonlinear correlation with continuum index, and the largest diversities were during the middle stage of succession. The diversities of total insect community and herbivorous insect group were negatively related withC i, that of spide group and parasitic insect group was positively related. The pattern diversity and coverage weight diversity index foliage height increased with continuum index.展开更多
很多学生在预习高中英语第二册第二课时,常把Bamboo is used formore than building理解错了,译为“竹子被更多地使用于建筑”。为什么会出现这种情况呢?原来是他们对句子中的 more than的意义和作用还不理解。现将中学英语课木中 more ...很多学生在预习高中英语第二册第二课时,常把Bamboo is used formore than building理解错了,译为“竹子被更多地使用于建筑”。为什么会出现这种情况呢?原来是他们对句子中的 more than的意义和作用还不理解。现将中学英语课木中 more than的用法总结如下: 一.more than连用:展开更多
A cook was preparing dinner; some dogs were lying at the kitchen door. Thecook killed a calf, and threw the insides into the yard. Tile dogs seized them, ate them up, and said, 'The cook is good; he knowshow to co...A cook was preparing dinner; some dogs were lying at the kitchen door. Thecook killed a calf, and threw the insides into the yard. Tile dogs seized them, ate them up, and said, 'The cook is good; he knowshow to cook well. ' After a little while the cook began to clean turnips and onions, and hethrew away the outsides. The dogs rail up to them, turned up their noses andsaid, 'Our cook is spoiled; he used to make good things, but now he展开更多
An old crab said to a young one, 'Why do youwalk so crooked, child? walk straight.' 'Mother,'said the young crab, 'show me the way, will you?and when I see you walking a straight course, I
文摘Plant, insect and forest structures of 25 forest communities were investigated in Mao'ershan Experimental Forest Farm and Liangshui Experimental Forest Farm during 1994–1995. The paper used continuum index (C i) as a parameter, to quantitatively describe forest community succession stage. Relationships between the biodiversity and continuum index of forest community were studied. The annual species and family diversities in forest plant community showed nonlinear correlation with continuum index, and the largest diversities were during the middle stage of succession. The diversities of total insect community and herbivorous insect group were negatively related withC i, that of spide group and parasitic insect group was positively related. The pattern diversity and coverage weight diversity index foliage height increased with continuum index.
文摘很多学生在预习高中英语第二册第二课时,常把Bamboo is used formore than building理解错了,译为“竹子被更多地使用于建筑”。为什么会出现这种情况呢?原来是他们对句子中的 more than的意义和作用还不理解。现将中学英语课木中 more than的用法总结如下: 一.more than连用:
文摘A cook was preparing dinner; some dogs were lying at the kitchen door. Thecook killed a calf, and threw the insides into the yard. Tile dogs seized them, ate them up, and said, 'The cook is good; he knowshow to cook well. ' After a little while the cook began to clean turnips and onions, and hethrew away the outsides. The dogs rail up to them, turned up their noses andsaid, 'Our cook is spoiled; he used to make good things, but now he
文摘An old crab said to a young one, 'Why do youwalk so crooked, child? walk straight.' 'Mother,'said the young crab, 'show me the way, will you?and when I see you walking a straight course, I
