标志着帝国主义在非洲殖民体系最终崩溃的是（   ）

1958年党中央发动“大跃进”和人民公社化运动后，“左”的错误严重泛滥，其主要标志是 （  ）：

①高指标 ②瞎指挥 ③浮夸风 ④“共产”风 

如图为某生态系统的碳循环示意图，其中甲、乙、丙生态系统中的三咱组成成分，A、B、C、D是乙中的四种生物，①～④代表生物的生理过程，请据图回答：

（1）碳在生物群落与无机环境之间的循环主要以____ 形式进行，生长在该生态系统中的蘑菇属于____ （填“甲”、“乙”或“丙”）中的生物，其体内贮存的能量____ （填“能”、“不能”）传递给植物．

（2）由于某种因素使得乙中B的数量在短时间内减少，一段时间后又恢复到原来水平，表明生态系统具有____ 能力，其基础是____ 调节．

（3）请画出该生态系统的食物链____ （用箭头和序号表示）．

    The panda is one of the ____ (animal) most in danger. There are about 1,000 pandas ____ (live) in nature reserves today. Zoos and research centers look after about 160 pandas. Scientists are studying ____ they live and more baby pandas are born in the zoos.

    Pandas live in the forests and mountains of Southwest China. They ____ (main) live on bamboo, and each panda ____ (need) to eat a lot of bamboo every day. The area of bamboo is becoming ____ (small) for many different reasons, ____ pandas have less and less land to live on. Pandas don't have many babies, and baby pandas often die. The situation is becoming very serious.

    Our government is working hard ____ (save) pandas. There are more than 30 nature reserves to protect pandas but these are not enough. The government has made a new plan to help pandas. The nature reserves will be bigger and the bamboo ____ (grow) better. Then the pandas will have enough food to eat and enough places to live in. Pandas born ____ the zoos may go back to live in the nature reserves.