问题
                    
_______ the help of this new type of calculator, people will be able to _______ much faster with more accurate figures as a result.[ ]
                            A: With; calculate 
B: Under; work out
C: By; make out
D: For ; count
                        
                        B: Under; work out
C: By; make out
D: For ; count
正确答案是:
                        