什么是残余应力？
参考答案：
由于受力，温度分布和成份的不均匀，而产生并残留在工件内部的应力。
— You wear a sad look on your face. What's wrong, Linda?
— Oh, nothing much. I _____ of my friends back home actually. [ ]
A. just thought
B. have just been thinking
C. was just thinking
D. have just thought
患儿，6岁。突发四肢抽搐3次，伴神志丧失，持续3～5分钟，自行缓解。舌淡红，脉弦。查脑电图示痫性放电。其治法是（）
A.镇惊安神
B.豁痰开窍
C.清肝镇惊
D.熄风止痉
E.滋阴柔肝
