通过选修1的学习,我们将获得和化学与生活相互渗透的学科知识,学会分析、解释生活中

题型:选择题

问题:

通过选修1的学习,我们将获得和化学与生活相互渗透的学科知识,学会分析、解释生活中的问题,转变生活观念,学会科学的生活方式。有一则广告称某品牌的八宝粥(含桂圆、红豆、糯米)不加糖,比加糖还甜,适合糖尿病人食用。你认为下列判断不正确的是 [ ]

A.这个广告有误导喜爱甜食消费者的嫌疑

B.糖尿病人应少吃含糖的食品,该八宝粥未加糖,可以放心食用

C.不加糖不等于没有糖,糖尿病人食用需慎重

D.不能片面听从厂商或广告商的宣传,可以咨询医生

考点:合理膳食
题型:选择题

HBV感染后产生的保护性抗体是()。

A.抗-HBS

B.抗-HBcIgM

C.抗-HBcIgG

D.抗-HBe

E.抗-前S

题型:选择题

绿色化学的核心是反应过程的绿色化,即要求原料物质中的所有原子完全被利用且全部转入期望的产品中,下列过程不符合这一思想的是

A.甲烷、CO合成乙酸乙酯:2CH4+2COCH3COOCH2CH3

B.烯烃与水煤气发生的羰基合成反应:RCH=CH2+CO+H2RCH2CH2CHO

C.乙醇催化氧化得乙醛

D.氯乙烯合成聚氯乙烯

题型:选择题

下列说法正确的是(  )

A.SiO2溶于水显酸性

B.CO2通入水玻璃可得硅酸

C.SiO2是酸性氧化物,它不溶于任何酸

D.SiO2晶体中不存在单个SiO2分子

题型:选择题

A discount retailer of basic household necessities employs thousands of people and pays most of them at the minimum wage rate. Yet following a federally mandated increase of the minimum wage rate that increased the retailer’s operating costs considerably, the retailer’s profits increased markedly.
Which of the following, if true, most helps to resolve the apparent paradox

A.Over half of the retailer’s operating costs consist of payroll expenditures; yet only a small percentage of those expenditures go to pay management salaries.

B.The retailer’s customer base is made up primarily of people who earn, or who depend on the earnings of others who earn the minimum wage.

C.The retailer’s operating costs, other than wages, increased substantially after the increase in the minimum wage rate went into effect.

D.When the increase in the minimum wage rate went into effect, the retailer also raised the wage rate for employees who had been earning just above minimum wage.

E.(E) The majority of the retailer’s employees work as cashiers, and most cashiers are paid the minimum wage.

题型:选择题

调查问卷中,如“请谈谈你对海尔理念的看法”之类的问题属于()。

A.事实性、开放性问题

B.态度性、开放性问题

C.事实性、封闭性问题

D.事实性、开放性问题

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