题目

湿空气和干空气的垂直递减率是不同的，湿空气的垂直递减率要小一些，因为湿空气上升时水汽会产生凝结，而水分凝结是释放热量的过程，抵消了部分因上升所引起的降温。读下图回答下题。 若d点气温为26℃，a点气温为30℃，d、c两点高度相同，b点的温度为10℃，c点温度为30℃，则背面坡与a点相同高度的点气温约为（    ） A．35℃                  B．30℃                    C．25℃                   D．34℃ 选用方框中的句子，完成下列对话 Simon：Our team won the basketball final today! Linda：That’s great! I planned to go to see the final but didn’t go in the end．　　1　　 Simon：Yes, I really enjoyed myself．　　2　　 Linda：I decided to stay home and pack my bags instead．So 　　3　　． Simon：Well, the other team was very fast and strong．Our team played badly at first but got better in the second half．Oh, Linda, I think you should go to the airport now．　　4　　 Linda：Yes, you’re right．I hope to see you again soon．　　5　　 Simon：OK．thanks for keeping the secret for me．　　6