【简答题】量块按“级”使用时,是以量块的______为工作尺寸的,该尺寸包含了量块的______误差;量块按“等”使用时,是以量块______为工作尺寸的,该尺寸包含了量块的______误差。
【简答题】量块按“级”使用时,以量块的______作为工作尺寸,该尺寸包含了量块的制造误差;量块按“等”使用时,以经检定后所给出的量块中心长度的______作为工作尺寸,该尺寸排除了量块制造误差的影响,仅包含检定时较小的测量误差。
【单选题】Their profits have grown in recent years, and his upward ______ is expected to continue.
【判断题】量块按等使用时,以量块实际尺寸为量块的工作尺寸;按级使用时,以量块上的标称尺寸为量块的工作尺寸。( )
【简答题】Women’s roles have changed throughout the world in recent years, but nowhere so obviously as in America .As the roles of women have changed ,so have men’s .In many American homes today ,the husband st...
【单选题】In the past he was often ________, but in recent years he ________ his living by doing business with local traders. [ ]
【简答题】量块按级使用时,以量块的( )为工作尺寸;该尺寸包含了量块的( )误差。
【简答题】There have been some shocking cases of violent child abuse in Britain in recent years. To mention just two: Kristy Bamu was murdered in 2010 because his attackers thought he was a witch. He was 15. An...
【简答题】Family relations have changed in recent years in China, as we have more and more one-child families. The only child in the family becomes the center of attention and his wishes are always obeyed. The ...