题目

有一种生活在热带的果蚁，将自己含有蛋白酶的排泄物排在收集来的落叶上，用这些落叶来培养真菌，然后以腐叶作为自己的食物来源。下列分析错误的是（ ）A.果蚁与真菌之间具有共生关系，是长期协同进化的结果B.果蚁从落叶中同化的能量可通过食物残渣传递给真菌C.真菌分泌的纤维素酶能促进落叶中纤维素的分解，从而有利于果蚁的取食D.果蚁与真菌都是分解者，能促进碳元素的循环A. survive B. drops C. created D. survey E. go aheadFor the first time, a heart needed for a life-saving operation was delivered by a flying drone! It’s not often that life-saving help 【1】 in from the sky, but that’s just what happened to one patient in a city in the United States. She had been waiting for a heart transplant for eight years and had finally heard that the operation could 【2】. These operations are where organs, such as a heart, are taken from one person’s body and put into the body of someone else, who needs it to 【3】. It’s really important to get the organ to the person as quickly as possible. Previously, they have usually been delivered by ambulance or plane. This patient’s new heart, however, was the first to be flown by a specially designed drone! This drone was 【4】 to deliver medical supplies and organs, and could keep the essential heart safe and at the right temperature.