题目

Back to Kansas? Dorothy asked. I don't know where Kansas is. But the ______ thing we should do is cross the ______ , and then it should be easy. Oz said. How? Dorothy asked. The little man explained(解释) he came to the ______ in a balloon before, so he could make a ______ to help Dorothy cross the desert(沙漠). We could fill it with ______ air. But if the air got cold and came down in the desert, we could be ______. Oz told Dorothy that he would like to go to Kansas with her. It took them three days to sew all the strips(条，带) together and Oz ______ the inside with glue(胶水) to ma“密蜂传粉”和“蜻蜓点水”这两种昆虫行为分别属于：A．防御行为和取食行为B．防御行为和迁徙行为C．取食行为和繁殖行为D．迁徙行为和繁殖行为