问题
单项选择题
水泵运行时会产生轴向推力，它可使（）沿轴向窜动。
A、泵轴
B、轴套
C、轴承
D、轴承体
答案
参考答案：A
搜题请搜索小程序“爱下问搜题”
水泵运行时会产生轴向推力，它可使（）沿轴向窜动。
A、泵轴
B、轴套
C、轴承
D、轴承体
参考答案：A
| 阅读理解。 | ||
speaker and author. This, book presents parents with "a positive approach to discipline that helps children to develop self-discipline, respect, responsibility and liveliness rather than anger." Dr Brooks of Harvard Medical School uses real-life stories to discuss such topics as self-respect and family relationships. Copies of Raising a Self-Disciplined Child, Raising Lively Children, and other books by Dr Brooks will be available for sate and signing following the talk. Wednesday, January 12@7 PM Allison Williams Activity Center Trinity School 4301 Northside Parkway, Atlanta, GA 30327 Call Ms Ginny Perkinson at 404-231-8113 for questions | ||
| 1. Who is this lecture intended for? | ||
| A. Parents. B. Children. C. Robert Brooks. D. Ginny Perkinson. | ||
| 2. This lecture is mainly about how to _____. | ||
| A. become a writer B. tell stories C. sell a book D. raise children | ||
| 3. People can _____ if they have questions about the lecture. | ||
| A. visit Mr Williams B. visit Dr Goldstein C. call 4301-30327 D. call 404-231-8113 | ||
| 4. Raising a Self-Disciplined Child is the name of a _____. | ||
| A. newspaper B. book C. company D. school |
