计算机中“处理器”的基本功能是：从存储器中取出指令，按指令的要求，对数据进行算术或逻

分析下列多重复句，用‖和|标出来。

①只要手稍微颤抖一下，②在显微镜下就会呈现极大的摆动，③甚至会使那娇小的生命死亡。 

Many theories concerning the causes of juvenile delinquency (crimes committed by young people) focus either on the individual or on society as the major contributing influence. Theories (51) on the individual suggest that children engage in criminal behavior (52) they were not sufficiently penalized for previous misdeeds or that they have learned criminal behavior through (53) with others. Theories focusing on the role of society suggest that children commit crimes in response to their failure to rise above their socioeconomic status, (54) as a rejection of middle-class values. Most theories of juvenile delinquency have focused on children from disadvantaged families, ignoring the fact that children from wealthy homes also commit crimes. The latter may commit crimes (55) lack of adequate parental control. All theories, however, are tentative and are (56) to criticism. Changes in the social structure may indirectly (57) juvenile crime rates. For example, changes in the economy that lead to fewer job opportunities for youth and rising unemployment (58) make gainful employment increasingly difficult to obtain. The resulting discontent may in turn lead more youths into criminal behavior. Families have also (59) changes these years. More families consist of one-parent households or two working parents; consequently, children are likely to have less supervision at home (60) was common in the traditional family structure. This lack of parental supervision is thought to be an influence on juvenile crime rates.

51().

A.acting 

B.relying 

C.centering 

D.commenting

（12分）【化学——化学与技术】

合成氨工业对国民经济和社会发展具有重要意义，下图是工业合成氨的简要流程示意图。

（1）合成氨的原料气往往混有CO₂等杂质，在进入合成塔之前需净化，其原因是_______ 。

（2）工业上合成氨选择的适宜条件是：以铁为主的催化剂、_______、________。

（3）沿X路线进入合成塔的物质是_______，这样设计的意义是________。

（4）目前工业制硝酸所采用的主要方法是_______法。

对分包商，主要通过分包合同明确双方的（），保证分包商能及时地按质按量完成合同责任。

A．法律义务关系

B．利益分配关系

C．责权利关系

D．分包责任关系

汽车噪声主要来自于汽车排放噪声、发动机噪声、轮胎噪声和喇叭噪声，此外还有车体振动和传动系噪声等。