热处理工序的安排对车削工艺影响不大,因此,车工不需要了解。( )

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问题:

热处理工序的安排对车削工艺影响不大,因此,车工不需要了解。( )

考点:车工中级车工中级
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在▱ABCD中,AC,BD相交于O,已知AB=8cm,BC=6cm,△AOB的周长为18cm,则△BOC的周长为______cm.

题型:判断题

Boxing games are truly widely supported by a lot of people over the world . The sport involves two people fighting with each other inside a ring with a referee making sure that the fight goes on smoothly. The fighters have to be of the same weight to be able to fight and they make use of their fists according to the rules of competition.

There are three ways in winning the game. First, you have to knock out the challenger. Secondly, there is the technical knockout (击倒). This usually happens when the rival is seriously hurt and unable to carry on and defend himself. Thirdly, each boxer gets on with the fight until the last round is over and done with and the winner is judged according to the scores he gets.

The first boxing champion was James Figg who came from England. It was in 1719 that the word "boxing" was known. The sport then was completely different from what you are used to seeing and observing nowadays. In 1743 Jack Broughton, a boxing title holder, was responsible for coming up with the rules and regulations to make the fight more manageable.

Under these rules, a boxer who falls and does not fight after 30 seconds has elapsed is declared the loser and any fighter is prevented from hitting his opponent when he is already down. Broughton was also the one who created the mufflers -- a kind of gloves with padding which were used during presentations and training.

Today, the sport has a total of 12 rounds with three minutes playing time for each round. Boxers are given a minute for them to rest or for consultation with their respective coaches. A referee has the responsibility of making sure that the boxers carry on with the fight according to the rules of the sport. The judges have the task of evaluating each fighter and give the fighter scores according to their punches(拳法).

小题1:Which ways decide that the boxer is the winner in the boxing game?

a. The boxer is prevented from hitting his opponent.

b. The boxer is unable to carry on and defend himself.

c. The boxer is given the highest scores by the judges.

d. The boxer has to knock out the challenger technically.

e The boxer falls but is able to fight after 30 seconds.

f. The boxer is able to get on with fight until the last round.

A.a,b,c

B.d, e, f,

C.c, d, f

D.a, b, e小题2:Which of the following is TRUE according to the text?

A.The first boxing champion was James Figg from Scotland.

B.Jack Broughton created a kind of gloves with paddling for boxers.

C.The coaches evaluate each fighter and give the fighter scores.

D.In 1719 the rules for boxing games were put forward.小题3:Which of the following might be the best title for the text?

A.Regulations for Boxing Game.

B.Three Ways to Win Boxing Game.

C.The First Boxing Champion

D.The Story Behind Boxing

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先天性心脏病患儿,肺动脉瓣区第二心音亢进伴固定分裂应首先考虑()

A.房间隔缺损

B.室间隔缺损

C.动脉导管未闭

D.法洛四联症

E.肺动脉瓣狭窄

题型:判断题

下列关于自然循环回路的工作特性说法错误的是( )。

A.进入上升管内工质的质量流量称为循环流量
B.流过管子单位面积的质量流量称为工质的质量流速
C.在汽水混合物中,水单独流过管子时的流速称为水的折算流速
D.汽水混合物的流速为水的折算流速与蒸汽的折算流速之和

题型:判断题

胸交感神经节阻滞术的适应证是()。

A.腹腔血管痉挛性疼痛

B.上肢雷诺病

C.糖尿病性下肢末梢神经炎

D.胸壁疱疹后神经痛

E.脑供血不足

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