（）是将钢件加热到临界点Ac1以下适当温度，保持一定时间后缓慢冷却的方法。
A．完全退火
B．不完全退火
C．去应力退火
D．应力退火
参考答案：C
_________,the manager had to__________the meeting to a speedy conclusion. [ ]
A. In conclusion; make
B. In conclusion; bring
C. On conclusion ; make
D. On conclusion ; bring
胆汁中含有脂肪酶，所以能促进脂肪的消化吸收。（）
