T10钢属于（）。

A . A、低温 B . B、中温 C . C、高温

A . 珠光体+奥氏体 B . 奥氏体 C . 奥氏体+渗碳体 D . 珠光体+渗碳体

A . A、高速钢 B . B、合金钢 C . C、碳素工具钢 D . D、空冷钢

A . A、高温回火 B . B、中温回火 C . C、低温回火 D . D、球化退火

A . 10、20钢太硬 B . T8、T10和T12钢太软 C . T8、T10和T12钢太硬

A . 正确 B . 错误

A . 齿轮 B . 刀具 C . 轴承

A . 正确 B . 错误

A . 正确 B . 错误

A . 0.95%~1.04% B . 1.05%~1.14% C . 0.85%~0.94% D . 0.80%~0.90%

A . 优质碳素工具钢 B . 高级优质碳素工具钢 C . 普通碳素工具钢

A . A、优质碳素钢 B . B、碳素工具钢 C . C、碳素结构钢 D . D、铸造碳素钢

A . 莱氏体 B . 铁素体+珠光体 C . 珠光体+渗碳体 D . 珠光体

A.UNTIL B.LEARNING C.WHEN A.DOES NOT MATURE【T7】_______ABOUT THE AGE OF TWO B.REMEMBER【T8】_______TO WALK C.【T9】_______THEY SEARCH THROUGH THEIR MENTAL FILES WHAT"S YOUR EARLIEST CHILDHOOD MEMORY？ CAN YOU 【T10】______？ OR TALK？ THEFIRST TIME YOU HEARD THUNDER OR WATCHED A TELEVISION PROGRAM？ ADULTS SELDOM RECALL EVENTS MUCH EARLIER THAN THE YEAR OR SO BEFORE ENTERING SCHOOL, JUST AS CHILDREN YOUNGER THAN THREE OR FOUR RARELY RETAIN ANY SPECIFIC, PERSONAL EXPERIENCES. A VARIETY OF EXPLANATIONS HAVE BEEN PROPOSED BY PSYCHOLOGISTS FOR THIS "CHILDHOOD AMNESIA" (儿童失忆症), ONE ARGUES THAT THE HIPPOCAMPUS, THE REGION OF THE BRAIN WHICH IS RESPONSIBLE FOR FORMING MEMORIES,【T11】______.BUT THE MOST POPULAR THEORY MAINTAINS THAT, SINCE ADULTS DO NOT THINK LIKE CHILDREN, THEY CANNOT REFLECT CHILDHOOD MEMORIES.ADULTS THINK IN WORDS, AND THEIR LIFE MEMORIES ARE LIKE STORIES OR NARRATIVES—ONE EVENT FOLLOWS ANOTHER AS IN A NOVEL OR FIL M.BUT【T12】______FOR EARLY CHILDHOOD MEMORIES TOADD TO THIS VERBAL LIFE STORY, THEY DON"T FIND ANY THAT FITS THE PATTER N.IT"S LIKE TRYING TO FIND A CHINESE WORD IN AN ENGLISH DICTIONARY.

是 否

是 否

是 否

A．完全退火 B．球化退火 C．再结晶退火 D．正火