通用针式打印机打印头针数普遍为（）针。 A.16 B.18 C.20 D.24

（苏州市2008届高三教学调研测试，化学，5）下列化学实验基本操作中正确的是

A．分液时，碘的四氯化碳溶液从分液漏斗下口放出，水层从上口倒出

B．蒸馏时，将温度计水银球置于被蒸馏的石油液面下，且不触及蒸馏烧瓶的底部

C．滴定时，左手控制滴定管活塞，右手握持锥形瓶，边滴边振荡并平视滴定管内液面

D．称量时，将纯碱放在称量纸上置于托盘天平的右盘，将砝码放在托盘天平的左盘

Many Chinese have been greatly shocked by the traffic accident caused by the drunk driver Sun Weiming, who has killed five and injured some others in Chengdu, Sichuan. However, such a case is not rare.

Today, the traffic accidents may have been regarded as a social problem. The car has killed and disabled more people in its brief history than any bomb or weapon ever invented. Much of the blood on the street flows actually from rude behavior of drivers who refuse to respect the legal and moral(道德的) rights of others. In fact, the enemies of society on wheels are rather harmless but just ordinary people acting carelessly, you might say. But it is a principle both of law and common morality that carelessness is no excuse when one's actions could bring death or damage to others. A minority of the killers go even far beyond carelessness that can be imagined.

Researchers have estimated that as many as 80 percent of all automobile accidents can be attributed to(归属于) the psychological condition of the driver. Emotional upsets can change drivers' reactions incorrectly, slow their judgment, and make them blind to the dangers that might otherwise be obvious. The experts warn that it is important for every driver to make a conscious effort to keep his/her emotions under control.

Yet the irresponsibility that accounts for much of the problem isn't only put upon drivers. Street walkers regularly ignore or break traffic regulations. They are blamed in most vehicle walker accidents, and many cyclists even believe that they are not subject（受…支配） to the basic rules of the road.

Significant legal advances have been made towards safer driving in the past few years. Safety standards for vehicles have been raised both at the point of manufacture and through regular road inspections. In addition, speed limits have been lowered. Due to these measures, the accident rate has decreased. But the accident experts still worry because there has been little or no improvement in the way drivers behave. The only real and lasting solution, say the experts, is to make people believe that driving is a skilled task requiring constant care and concentration. Those who fail to do all these things present a threat to those with whom they share the road.

小题1:Traffic accidents may be regarded as a social problem because          .

A．auto driving has become dangerous and harmful in today's society

B．people usually pay no attention to law and morality when driving

C．they have caused serious psychological problems among drivers

D．the car has killed and disabled more people than any weapon in history小题2:Who are NOT mentioned as being responsible for the road accidents?

A．Careless bicycle-riders.

B．Careless people walking in the street.

C．Irresponsible auto drivers.

D．Irresponsible auto manufacturers.小题3:Discussing solutions to traffic accidents, the author seems to be          .

A．doubtful and hopeless

B．angry and disappointed

C．objective (客观的) and concerned

D．anxious and annoyed

《中华人民共和国固体废物污染环境防治法》规定，从事收集、贮存、处置危险废物经营活动的单位，必须向( )申请领取经营许可证。

A．国务院

B．国家环保总局

C．省级以上人民政府环境保护行政主管部门

D．县级以上人民政府环境保护行政主管部门

在新技术应用方案的技术分析中，下列反映技术条件的指标是( )。

A．现浇混凝土强度
B．可用安装“构件”总量
C．可用安装“构件”最大安装高度
D．方案占地面积

投资项目产品价格预测除了应了解劳动生产率、成本和利润等情况外，更重要的是要考察( )。

A．产品市场供应状况
B．劳动力市场状况
C．原材料供应状况
D．市场营销状况