问题 单项选择题

汽轮机危急保安器应在()额定转速范围内动作。

A.110-112%

B.120%

C.140%

答案

参考答案:A

改错题

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

判断题