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                单选20. There are nine planets ithe solar system _____are larger thaour earth.
·some of that\t\t
·some of which
·some of whose
·some of them
                    
                    
                    
                
                
                
            
        ·some of that\t\t
·some of which
·some of whose
·some of them
参考答案
 
                