题目

 改错。 1. New York is one of the biggest city in the world. 2. This park is as more beautiful as that one. 3. Lucy is the cleverest of the two sisters. 4. Who forgets easier, he or his brother? 5. Kitty jumps higher than any other girls in her class. 答案：1. city改为cities 2.删去more 3. cleverest 改为cleverer 4. easier 改为 more easily 5. girls 改为 girl下列各组物质中，按熔点由低到高排列正确的是（     ） A  O2 、I2、Hg                B   CO2、NaCl、KCl、Si C  HF、HCl、HBr              D   镁铝合金、Mg、Al