在曲轴轴颈表面和圆角处采用圆角滚压工艺,可使表面产生塑性变形,形成残余应力,能提高曲

题型:填空题

问题:

在曲轴轴颈表面和圆角处采用圆角滚压工艺,可使表面产生塑性变形,形成残余应力,能提高曲轴的()。

考点:汽车驾驶员考试汽车驾驶员中级工考试汽车驾驶员中级工考试题库
题型:填空题

集体土地征收后的征地补偿费用包括()。

A.安置补助费

B.地上附着物补偿费

C.土地补偿费

D.安置补偿费

E.青苗补偿费

题型:填空题

如图所示一长为、质量为的车厢静止于光滑水平面上,车厢内有—质量为的物体以初速度向右运动,与车厢来回碰撞次后静止于车厢中,这时车厢的速度为(    )

A.,水平向右

B.零

C., 水平向右

D.,水平向右

题型:填空题

患者,男,22岁。饥饿性上腹痛伴反酸1月余。2小时前呕血1次,暗红色,量约200ml。体重无明显变化。否认慢性肝病史。查体:贫血貌,腹软,上腹部有压痛,无反跳痛,肝脾肋下未触及。

应首先考虑的出血原因是()

A.消化性溃疡

B.急性糜烂性胃炎

C.胃黏膜脱垂

D.食管胃底静脉曲张破裂

E.胃癌

题型:填空题

变换建立水循环前,应当先建立()液位,再启动泵。

A、增湿塔

B、减湿塔

C、增湿塔,减湿塔同时建立

D、增湿塔,减湿塔任意一个塔

题型:填空题

In a recent survey, Garber and Holtz concluded that the average half-hour children’s television show contains 47 violent acts. When asked about the survey network television executive Jean Pater responded. "I sure as heck don’t think that Bugs Bunny’s pouring a glass of milk over a chipmunk’s head is violence. " Unfortunately, both Garber and Holtz and Pater beg the question. The real issue is whether children view such acts as Violence.

The violence programming aimed at children almost always appears in the context of fantasy. Cartoon violence generally includes animation, humor, and a remote setting. There is no evidence of direct imitation of television violence by children, though there is evidence that fantasy violence can energize previously learned aggressive response such as a physical attack on another child during play. It is by no means clear, however, that the violence in a portrayal is solely responsible for this energizing effect. Rather, the evidence suggests that any exciting material can trigger subsequent aggressive behavior and that it is the excitation rather than the portrayal of violence that instigates or energizes any subsequent violent behavior. "Cold" imitation of violence by children is extremely rare, and the very occasional evidence of direct, imitative associations between television violence and aggressive behavior has been limited to extremely novel and violent acts by teenagers or adults with already established patterns of deviant behavior. The institutional effect means, in the short term, that exposure to violent portrayals could be dangerous if shoaly after the exposure (within 15 to 20 minutes), the child happens to be in a situation that calls for interpersonal aggression as an appropriate response, for example, an argument between siblings or among peers. This same institutional effect, however, could be produced by other exciting but nonviolent television content or by any other excitational source, including, ironically, a parent’s turning off the set.

So there is no convincing causal evidence of any cumulative instigational effects such as more aggressive or violent dispositions in children. In fact, passivity is a more likely long term result of heavy viewing of television violence. The evidence does not warrant the p conclusions advanced by many critics who tend to use television violence as a scapegoat to draw public attention away from the real causes of violence—causes like abusive spouses and parents and a culture that celebrates violence generally.

If there is an argument between siblings one hour after their watching some TV violence, these children would ().

A. likely fall into a state of total passivity to their parents

B. likely behave less aggressively than on other occasions

C. unlikely resort to any violent actions but keep peaceful

D. unlikely be more violent than without watching the program

更多题库