什么叫加热工艺?
参考答案:
在轧钢生产过程中,为使钢材便于进行压力加工,就必须根据钢本身发生的变化及特性的不同而相应地采取不同的加热规范,就是钢的加热工艺。
阅读短文,给下列句子排序。
I went to a park by bike. I flew kites. It was a windy day. Suddenly my kite flew into the lake.
A dog saw the kite. He jumped into the lake and swam to it. Five minutes later, he returned the kite to me.
I was very grateful to him.
( ) I went to a park.
( ) He returned the kite to me.
( ) He swam to the kite.
( ) The dog jumped into the lake.
( ) The kite flew into the lake.
β受体阻断药是()
A.卡维地洛
B.硝普钠
C.普萘洛尔
D.胍乙啶
E.甲基多巴