产生白点缺陷的外在原因是钢的（）过快使氢气不能充分逸出。
参考答案：冷却速度
Can you believe? To raise an adopted dog, a young Australian even stayed single, __________ possible relationships with female students on campus!
A．turning out
B．turning down
C．turning away
D．turning in
经行暴多因于何邪为病？（）
A.热邪
B.暑邪
C.燥邪
D.风邪
E.火邪
