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问题 多项选择题

由于精度指数了是用数理统计方法求得的，所以在测定精度指数T时( )。

A．检测项目可以任意挑选

B．检测项目不能过少

C．出现个别超差过大的项目应将其剔除

D．T是一个无量纲的数值

E．T值越小，设备精度越高

答案

参考答案：B,D,E

阅读理解
阅读理解。
                                   Musician Wanted
     Can you play the drums or the guitar? Would you like to make some money this vacation? We
need two new band members for our group. Are you interested? Then come for an audition on
Saturday afternoon at 2:00 pm, Hopewell Center Auditorium.
                                 New T4 Music Show
     We are looking for a number of people to come down and be part of our on camera audience,
age range 12-15, to dance and have fun. If you love music, dancing and looking good we would
love to hear from you. Choice of time: 12:45 pm or 7:45 pm. Call the Nokia Green Room at
556-3826.
                                        Conversation Tutor Wanted
     Can you speak English? Do you like kids? I need someone to help my daughters learn English
during their vacation. It doesn't matter if your English isn't perfect, just as long as you can hold a
conversation. Please call Mrs. Johansson at 555-3721; the pay is good.
                                          Part-time Cleaning Help
     Are you looking for a vacation job? Can you clean house and cook? Then, I need you. The work
is boring, but the pay is good. I need you from 2:00-5:00, Mon- day to Saturday. Please call Emily
Martin at 293-7742.
1. If you want to be a tutor, you can call ______.
A. 293-7742
B. 555-3721
C. 667-8973
D. 556-3826
2. People who like dancing can come at ______.
A. 7:45 pm
B. 11:45 am
C. 12:15pm
D. 2:00 pm
3. Ms. Martin really needs a ______.
A. tutor
B. musician
C. cleaner
D. dancer
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单项选择题

小刘比她丈夫小四岁，他们结婚三年才有了现在的儿子，今年小刘的年龄恰好是儿子的15倍，她丈夫的年龄是儿子的17倍，结婚时小刘的年龄是（）。

A．24岁

B．25岁

C．26岁

D．28岁
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