单项选择题

Questions 19 to 22 are based on the conversation you have just heard.

A. Take breaks often while working at the computer.
B. Sit as far from the computer screen as possible.
C. Move around often while working at the computer.
D. Keep your arms and hands relaxed on the keyboard.
<上一题 目录 下一题>
热门 试题

单项选择题
A. $10. B. $15. C. $20. D. $25.
A. $10.
B. $15.
C. $20.
D. $25.
单项选择题
A. He already has a job. B. He will probably work at the library. C. He needs to study full time. D. He wants a part-time job at the library.
A. He already has a job.
B. He will probably work at the library.
C. He needs to study full time.
D. He wants a part-time job at the library.
相关试题