题目

One evening, Mr Green was driving his car along a lonely country road. He had ___1___ $10 000 from the bank in town. Suddenly a man in rags stopped him and asked for ___2___. Mr Green told him to get on and continued his way. ___3___ he talked to the man, he ___4___ that he had just broken out of prison. Mr Green was very afraid at the ___5___ of the money. Suddenly he saw a police－car and had a ___6___ idea. He ___7___ speed and drove as quickly as possible. Then he found the police-car running ___8___ him. After a mile ___9___ the police-car passed him and ordered him to stop. A po一把汤勺的质量为35.6g，它的体积为4cm3，则它的密度为多少g/cm3？