问题
多选题
二氧化碳、一氧化碳与人们的生产和生活有着广泛的联系，下列的认识中，正确的是（ ）
A．“温室效应”主要是二氧化碳过多引起的，但二氧化碳能在灭火中大显身手
B．绿色植物光合作用时吸收二氧化碳并放出一氧化碳
C．一氧化碳可作气体燃料，但易与人体血红蛋白结合，使人中毒
D．任何条件下二氧化碳和一氧化碳相互间不能转变
答案
AC
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二氧化碳、一氧化碳与人们的生产和生活有着广泛的联系，下列的认识中，正确的是（ ）
A．“温室效应”主要是二氧化碳过多引起的，但二氧化碳能在灭火中大显身手
B．绿色植物光合作用时吸收二氧化碳并放出一氧化碳
C．一氧化碳可作气体燃料，但易与人体血红蛋白结合，使人中毒
D．任何条件下二氧化碳和一氧化碳相互间不能转变
AC
The telephone rang in the police station at Richmond, California, US. “ station? A train for Santa Fe collided (相撞) a at the McDonald Street Crossing. Please come here at once. With an ambulance, too. A man is badly wounded,” said an anxious voice of a young woman. “OK. We’ll come soon. Please stay there and wait.” Replied the policeman. Within a minute, a police car and an ambulance off. Soon they got to the crossing, but only to find everything was fine. No collision, no wounded man. “What a dirty !” said the policeman angrily. “ We must find out that woman and…” They had not been able to say anything about a when they heard the whistle of a train was nearing them quickly. All of a sudden, a truck appeared. It came towards them, too. When it was passing the crossing, it suddenly to move on. Right then and there, before the eyes of all the people present, the train collided with the truck heavily and struck it dozens of metres away. When Randolph Bruce, the driver, was helped out of the damaged truck, he was badly wounded just as the young woman had predicted on the phone. As he was taken to hospital in time, he was at last. Later the police did whatever they could to the woman who had them, but failed. It is really that a prediction should agree with the fact so .
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