细丝CO2焊时,熔滴过渡形式一般都是______。
A.短路过渡
B.射流过渡
C.粗滴过渡
D.喷射过渡
参考答案:A
句型转换.
1. I like reading and listening to music. (变否定句)
I ________ ________ reading or listening to music.
2. Kate comes from America. (变一般疑问句)
________ Kate ________ from America?
3. He often tells interesting stories to the class. (变同义句)
The class often ________to him tell interesting stories.
4. My father has lunch at twelve o'clock. (就划线部分提问)
________ ______does your father have lunch?
5. What's your father's job? (变同义句)
________ does your father ________?
有历史学家认为:帝国主义阶段是资本主义走向成熟和定型的时期,这一时期,资本主义在自我调节中不断向前发展。下列选项不符合这一观点的是:()
A.日本在政府扶持下出现垄断组织
B.英国开始实行自由主义
C.法国进一步巩固了共和制
D.美国两党制政治的制衡作用加强