奥氏体中随含碳量的增加,晶粒尺寸增大,至碳含量为1.2%时,随含碳量的增加,晶粒长大速度()。
参考答案:减小
在预防唇腭裂发生的措施中,哪项是错误的
A.妊娠期可不忌烟酒
B.妊娠期保持愉快心情,避免精神刺激和情绪波动
C.避免近亲结婚
D.避免过多接触放射线、微波
E.禁用可能致畸的药物
Today's children are raised in a way that is totally different from how their parents were _____. [ ]
A. brought up
B. brought on
C. taken on
D. taken up