题目

下列变化属于化学变化的是（） A . 水的沸腾 B . 木炭燃烧 C . 酒精挥发 D . 蔗糖溶解 答案：B阅读理解 　　阅读短文并判断文后所给句子正确与否，正确的题前括号内打T，错误的打F。 　　One day a doctor was starting his morning's work . Suddenly a man ran into his room . His face was red and he could not say anything but “Quick ! Quick ! ” . The doctor thought he must be very ill. His assistant helped to make the poor man sit in a chair. The doctor gave the man some medicine to make him sleep . Then he looked into the man's mouth and pulled out all the bad teeth . As soon as the man woke up he said,“Quick, doctor, quick.” in a low voice . 　　“It's all right, the doctor told him. It's over. ” 　　“You don't understand,” said the man. “I came to tell you your house is on fire . ” 1．When the man ran into the room, his face was very dirty . 2．The man had a toothache, so he came to see the doctor. 3．The doctor pulled out all the man's teeth. 4．The man woke up and still didn't forget why he came to the doctor's. 5．The man came and wanted to say the doctor's house had some fire in it.