【单选题】矫正后的钢材表面,不应有明显的凹面或损伤,划痕深度不得大于( )mm且不应该大于该钢材厚度允许负偏差的1/2。
【简答题】五、短文改错(共10分) Peter was walking back home from school, thought about the class today. It was about giving the first aid. Suddenly he saw a young girl lying on the ground. She seemed to be asleep, so Pe...
【单选题】矫正后的钢材表面,不应有明显的凹面或损伤,划痕深度不得大于0.5mm,且不应大于该钢材厚度负允许偏差的( )。
【单选题】钢零件及钢部件矫正后,钢材表面不应有明显的凹面或损伤,划痕深度不得大于( )mm。
【简答题】No one knows how man learned to make words. Perhaps he began by sounds like those made by animals. Perhaps he grunted like a pig when he lifted something heavy. Perhaps he made sounds like thos...
【简答题】改错。 ( )1. Did you enjoy you yesterday, my children ? ________ A B C D ( )2. He taught his son how mend bikes . ________ A B C ...
【单选题】钢零件及钢部件加工要求中,矫正后的钢材表面,不应有明显的凹面或损伤,划痕深度不得大于( ),且不应大于该钢材厚度允许负偏差的1/2。
【单选题】听力原文: The 'American dream' is an idea that grew from TV programs, books, and stories about family life. The idea began in the 1950s, after World War 11. What was the 'dream' ? As the first step, famil...
A.
Dreams about a comfortable little home.
B.
Dreams about becoming an American citizen.
C.
Dreams about family life.
D.
Dreams about books and stories.