The first night was very hard for the players. When it was their turn to rest, they were too excited(兴奋的) to fall asleep at once.
After sleeping for a short time, they had to play again. On the second night, they fell asleep as soon as they stopped. Some of them had trouble with their feet and hands, but the only serious problem was a psychological(心理上的) one. Each boy was thinking：why am I doing this？How can I play any longer？After the third night, the players knew they could finish the ninety hours. The basketball on the fourth night was very slow. But in the final hours, the players got better. For the last few minutes, the players looked as fresh as when they started. How happy everyone was！
小题1:In the story, there were _______ schoolboys playing basketball marathon.
A．9
B．14
C．17
D．18小题2: Before this basketball marathon, the world record was _______.
A．84 hours
B．86 hours
C．90 hours
D．96 hours小题3:The first night was hard for the players to fall asleep because _______.
A．they were too excited
B．they only slept for a short time
C．no one watched them play
D．it was very long小题4:“…the players looked as fresh as when they started” here “fresh” means _____.
A．新鲜的
B．兴奋不已的
C．精神饱满的
D．伤痕累累的小题5: Which of the following sentences is wrong？_______.
A．Some of the boys were hurt when they played.
B．It was hard for the players to fall asleep at night.
C．The boys started playing at 6 o’clock in the evening.
D．In the end, all the boys felt happy.
它可看作是由四个等同的六元环连成的空间构型。请根据中学学过的异构现象判断由氯原子取代金刚烷亚甲基(—CH2—)中氢原子所形成的二氯取代物的种类 