| Unlike the scientist, the engineer is
not free to select the problem which interests him；he must solve the problems as
they arise, and his solutions must satisfy conflicting requirements. Typically,
the engineering solution to most problems must take into account many
factors. To the engineer, efficiency means output divided by input. His job is to secure a maximum output for a given input or to secure a given output with a minimum input. The ratio may be expressed in terms of energy, materials, money, time, or man. Most commonly the denominator (分母) is money；in fact, most engineering problems are answered ultimately in dollars and cents. The emphasis on efficiency leads to the large, complex operations which are characteristic of engineering. The processing of the new antibiotic and vaccine A. A．it involves the low-cost production of large quantities B．these items originate in the work of biochemistry C．people are engaged in safe operations in the test-tube stage D．business agents use efficient methods to market these items [判断题]目标聚焦是以企业的目标市场与产业内其它细分的差异性为基础。
A.正确 B.错误 [单选题]某纺织厂为进行技术革新，从国外引进纺织机5台，并配套相应的生产设备若干。该厂再次投产前需要进行安全评价，评价机构可采用的评价方法有：①概率风险评价法②作业条件危险性评价法③伤害(或破坏)范围评价法④专家现场询问观察法⑤危险系数评价法⑥预先危险性分析法。为评估该纺织厂棉粉尘火灾、爆炸风险，可以使用的定量评价方法是（ ）。
A.A.②④⑤ B.B.①②⑥ C.C.①③⑤ D.D.③④⑥ [单项选择]违反《污染源自动监控管理办法》规定，新建、改建、扩建和技术改造的项目未安装自动监控设备及其配套设施，或者未经验收或者验收不合格的，主体工程即正式投入生产或者使用的，由审批该建设项目环境影响评价文件的环境保护部门依据《建设项目环境保护管理条例》责令停止主体工程生产或者使用，可以处（）以下的罚款。
A. 15万元 B. 10万元 C. 5万元 D. 1万元 [单项选择]患者男性，29岁，感染性肺炎并伴发休克，此时在足量有效抗生素治疗的基础上应给予（）
A. 糖皮质激素 B. 肾上腺素 C. 强心苷 D. 胰岛素 E. 阿托品 [单选题]操作中发生误操作事故，处置错误的是(____) 。
A.立即汇报调度 B.采取有效措施，将事故控制在最小范围内 C.停止操作 D.控制事故上报的范围 [多选题]调车作业要准确掌握速度,司机接到“十车”、“五车”、“三车”距离信号时,应分别将速度降至（ ）km/h以下。
A.17 B.12 C.7 D.20 [单选题]由 RLC 并联电路中，为电源电压大小不变而频率从其谐波频率逐渐减小到零时，电路中的电流值将( )。
A.从某一最大值渐变到零 B.由某一最小值渐变到无穷大 C.保持某一定值不变 [多选题]以下关于黑社会性质组织犯罪的说法正确的是（ ）。
A.甲是黑社会性质组织的积极参加者，应当按照该黑社会性质组织所犯的全部罪行处罚 B.乙是黑社会性质组织的参加者，应当按照其所参与的犯罪处罚 C.丙参加黑社会性质的组织，但没有实施其他违法犯罪活动，可以不作为犯罪处理 D.某乡基层公务员丁参加黑社会性质组织，应从重处罚 [单项选择]
Anthropology is the study of human beings as creatures of society. It (1) its attention upon those. physical characteristics and industrial techniques, those conventions and values, which (2) one community from all others that belong to a different tradition. 我来回答: 提交
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