问题
单项选择题
电导率和磁导率的变化，可利用( )的特点来综合评价容器消除应力热处理的效果，检测材料的质量以及测量尺寸。
A．渗透检测
B．涡流检测
C．磁记忆检测
D．磁粉检测
答案
参考答案：B
搜题请搜索小程序“爱下问搜题”
电导率和磁导率的变化，可利用( )的特点来综合评价容器消除应力热处理的效果，检测材料的质量以及测量尺寸。
A．渗透检测
B．涡流检测
C．磁记忆检测
D．磁粉检测
参考答案：B
| 阅读下面的短文，根据其内容从所给的12个单词或短语中选择10个，并以其适当的形式填空。 | |
home. There are so many (2)________ books there. Each one has its (3)________ secrets. Each one has (4)________ to teach and share. Some (5)________ beautiful pictures. (6)________ have interesting stories. To Lucy, books are (7)________ her good friends. At the library, Lucy has friends (8)________ around her. Lucy is always ready to help people, (9)________ the staff at the library all like her. They help (10)________ choose books for the readers. |