防止埋弧焊产生咬边的主要措施是调整焊丝位置和调节焊接规范。

题型:判断题

问题:

防止埋弧焊产生咬边的主要措施是调整焊丝位置和调节焊接规范。

考点:初级电焊工考试初级电焊工考试题库
题型:判断题

短文改错(共10小题;每小题1.5分,满分15分)

My classmate LiuXin became crazily about a popular      小题1:___________

star last year. She now listens his songs, buys his pictures     小题2:____________

and goes to his concerts wherever they are.She seems        小题3:___________

to have lost interest on her studies.All that shw wants        小题4:_______

is to know about his latest news.As the result, she has fallen   小题5:__________

behind others.We are all very worried about her and wanted   小题6:_________

to help her,but she doesn’t follow our advices.Our teacher    小题7:___________

Mr Chen has told her parents about this.They are surprising   小题8:________

and sad.I don’t think Liu Xin is the only girl who are crazy    小题9:_________

about popular stars.What can we do it to help them out?       小题10:_________

题型:判断题

Tim will call me as soon as he _____ my package. [ ]

A. receive

B. will receive

C. received

D. receives

题型:判断题

某二元码序列传信率为2400b/s,若改用八元码序列传送消息,则码元传输速率为()。

A.1200B

B.800B

C.600B

D.300B

题型:判断题

以下关于食品冻藏规律的描述中,哪一项是错误的

A.植物性食品的冻藏期长于动物性食品

B.水产品的冻藏期长于畜肉

C.少脂鱼的冻藏期长于多脂鱼

D.蔬菜的冻藏期长于水果

题型:判断题

被授权组织是指依照法律、法规授权而行使特定行政职能的非国家机关组织,其在行使法律、法规授权的行政职能时,成为()。

A.行政主体

B.民事主体

C.刑事主体

D.行政机关

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