DL/T869-2004中规定,异种钢焊接时,预热温度应按焊接性能较差或合金成分较低的一侧选择()
参考答案:错
用合适的介、副词填空
1.I like Qi Baishi because he’s good ________ drawing.
2.Mulan dresses ________ a man and saves her people instead of his father.
3.Norman Bethune gave his own life ________ Chinese people.
4.Jackie Chan was born ________ 1950.
5.Norman Bethune is still remembered ________ both Canada and China.
6.She is too little so you must look ________ her.
7.________the First World War, he saved a lot of persons.
8.He also wrote books so that doctors could learn ________ new treatments.
9.He is remembered ________ his work as a doctor.
10.________ the end, he lost his job.
威灵仙丸功效与作用