滚铝的外观特征是什么?
参考答案:
由于铝液的波动,外观上表现为电压摆严重,电压摆在500mV以上,火苗时冒时回,同时在槽壁上可以观察到泛上来的铝水,有时会听到响声。
句型转换。
1. Jim is from England. (改为同义句)
Jim _____ _____ .
2. His name is Tom. (用缩写形式改写)
_____ _____ Tom.
3. John is from Wu han. (改为一般疑问句,并作否定回答)
_____ John from Wu han? No, he _____ .
4. Daming is a student. He is in Class One. (合并为一句)
Daming is a student _____ he’s in Class One.
5. My mother and father are English teachers. (改为否定句)
My mother and father _____ English teachers.
单位工程正式验收时,应由()来组织各有关单位负责人进行单位工程验收。
A.建设单位负责人
B.监理工程师
C.项目经理
D.造价工程师