改错。

( ) 1. Although I am new here, I have used to living here.                                                         

                  A                                           B       C

( ) 2. If I won the jackpot on a game show, I would divide the money to three.                           

                    A                    B                                                            C 

( ) 3. "Where are you going for vacation? Have you planed it out?"                                             

                                      A              B                         C

( ) 4. All consumers should be aware of their right of choose.                                                    

                        A                          B                      C

( ) 5. The sleeve is torn. It needs to be sew.                                                                             

                      A         B                          C

80波的波分复用系统中，用到的数量最多的单元是（）。

A.OMU

B.OD.U

C.OTU

D.OA.D.M