使板料经分离或成形而得到制件的工艺统称为()。 A.挤压 B.铸造 C.冲压 D.锻

题型:单项选择题

问题:

使板料经分离或成形而得到制件的工艺统称为()。

A.挤压

B.铸造

C.冲压

D.锻造

考点:电力机车钳工电力机车钳工(初级)电力机车钳工(初级)题库
题型:单项选择题

补充歇后语

1.外甥打灯笼——                         

2.孔夫子搬家——                             

3.干打雷不下雨——                               

4.一张纸画个鼻子——                              

题型:单项选择题

右图是l921年7月,停泊在嘉兴南湖的一艘游船,它见证了()

A.戊戌变法的失败

B.中 * * 党的成立

C.抗日战争的胜

D.解放战争的胜利

题型:单项选择题

Z—代表闸阀,J—代表()

A.截止阀

B.安全阀

C.球阀

题型:单项选择题

When Dave was eighteen, he bought a secondhand car for 200 so that he could travel to and from work more (1) than by bus. It worked quite well for a few years, but then it got so old, and it was costing him (2) much in repairs that he decided that he had better (3) it.

He asked among his friends to see if anyone was particularly (4) to buy a cheap car, but they all knew that it was falling to pieces, so (5) of them had any desire to buy it. Dave’s friend Sam saw that he was (6) when they met one evening, and said, "What’s (7) , Dave"

Dave told him, and Sam answered, "Well, what about advertising it in the paper You may (8) more for it that way than the cost of the advertisement!" Thinking that Sam’s (9) was sensible, he put an advertisement in an evening paper, which read "For sale: small car, (10) very little petrol, only two owners. Bargain at 50. " For two days after the advertisement first appeared, there was no (11) . But then on Saturday evening he had an enquiry. A man rang up and said he would like to (12) him about the car. "All right, " Dave said, feeling happy. He asked the man whether ten o’clock the next morning would be (13) or not. "Fine, " the man said, "and I’ll (14) my wife. We intend to go for a ride in it to (15) it. "

The next morning, at a quarter to ten, Dave parked the car in the square outside his front door, (16) to wait there for the people who had (17) his advertisement. Even Dave had to (18) that the car really looked like a wreck. Then, soon after he had got the car as clean (19) it could be, a police car stopped just behind him and a policeman got out. He looked at Dave’s car and then said, "Have you reported this (20) to us yet, sir\

13()

A.exact 

B.suitable 

C.early 

D.late

题型:单项选择题

树枝折毁,人向前行感觉阻力很大,表示的风是()。

A、疾风

B、轻风

C、狂风

D、大风

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