问题 单项选择题

在人们经常出现活动的地方,离地面1米处的场强要控制在()kV/m以内。

A.3~5

B.6~7

C.7~8

D.9~10

答案

参考答案:A

选择题

指出下列句子中,哪一个划线单词的重音位置与其他划线单词不同,将序号填在括号内。

( ) 1. Remember to meet me at the library in the Republic Square the day after tomorrow.

                   A                                    B                  C                                          D

( ) 2. —Ask them to write a report  about the programme.

                                                A        B                C 

            —OK. That's a good idea.

                                            D

( ) 3. A person with good manners should always be polite and helpful.

                   A                         B                    C            D

( ) 4. The computer is very useful today, for example,

                         A                                              B

             the librarian can use it to help you find the books on medicine easily in the library. 

                       C                                                                    D

( ) 5. At one time, there were long queues of people  waiting  outside the ticket offices of CAAC.

                                                                        A          B          C            D

选择题