问题
                    
_______is snowing, _____they are still working hard in the factory.[ ]
                            A: Although;but 
B: Although;/
C: But; /
D: But; although
                        
                        B: Although;/
C: But; /
D: But; although
正确答案是:
                        
                        
                        
                    同类题型
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