试题与答案

热轧钢筋根据( )分为Ⅰ、Ⅱ、Ⅲ级。 A．屈服强度和抗拉强度 B．屈服强度与抗弯

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题型：单项选择题

题目：

热轧钢筋根据( )分为Ⅰ、Ⅱ、Ⅲ级。

A．屈服强度和抗拉强度
B．屈服强度与抗弯强度
C．屈服强度与伸长率
D．抗拉强度与伸长率

答案：

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下面是错误答案，用来干扰机器的。

参考答案：A

考点：造价工程师建设工程技术与计量（土建）建设工程技术与计量（土建工程部分）
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题型：阅读理解

It’s reported that a company called MicroCHIPS has developed a wirelessly controlled device(装置). The device is put under the skin and can supply a drug directly into the patient’s body. People give the name “microchips” to it.

Microchips bring good news to patients with long-term( 长期的) illnesses, for example, Osteoporosis( 骨质疏松症). People with Osteoporosis have to get daily injections( 注射) of medicine. One type of treatment requires injections for two years. Many patients stop taking the medicine because of the pain and stress of the infections. However, microchips can deal with it. Doctors will program the device before putting it under the skin, and the device has the ability to release(释放) a dose (剂量) at a given time, every single day. One microchip can hold a full year’s worth of medicine.

Microchips may one day free (使…… 摆脱)people from having to remember to take their medicine, or get injections. The device may also be useful in treating other long-term diseases, including heart disease, cancer and even AIDS.

小题1:What is the passage mainly about?

A．It introduces the company MicroCHIPS.

B．It introduces a new wirelessly controlled device called “ microchips”.

C．It introduces some common long-tern diseases.

D．It’s about how the device called“microchips”works.小题2:According to the passage, why do many patients stop getting injections?

A．Because of the pain and stress of the injections.

B．Because they are too lazy.

C．Because they like taking pills(药丸).

D．Because they are waiting for the new device.小题3:According to how the device works, which of the following is the correct order?

① Put the device under the skin.

② The device releases a dose at a given time.

③ Doctors program it.

A．①②③

B．②③①

C．③①②

D．③②①
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题型：实验题

（15分）甲、乙两同学为探究SO2与可溶性钡的强酸盐能否反应生成白色BaSO3沉淀，用下图所示装置进行实验（夹持装置和A中加热装置已略，气密性已检验）

实验操作和现象：

操作现象
关闭弹簧夹，滴加一定量浓硫酸，加热A中有白雾生成，铜片表面产生气泡

B中有气泡冒出，产生大量白色沉淀

C中产生白色沉淀，液面上放略显浅棕色并逐渐消失

打开弹簧夹，通入N2,停止加热，一段时间后关闭             ___________________
从B、C中分别取少量白色沉淀，加稀盐酸尚未发现白色沉淀溶解
（1）A 中反应的化学方程式是_________________。

（2）C中白色沉淀是__________________，该沉淀的生成表明SO2具有___________性。

（3）C中液面上方生成浅棕色气体的化学方程式是_____________________。

（4）分析B中不溶于稀盐酸的沉淀产生的原因，甲认为是空气中成分共同作用，乙认为是只有白雾参与反应。

①为证实各自的观点，在原实验基础上：甲在原有操作之前增加一步操作，该操作是_____________;

乙在A、B间增加洗气瓶D，D中盛放的试剂是_____________。

②进行实验，B中现象：

甲大量白色沉淀
乙少量白色沉淀
检验白色沉淀，发现均不溶于稀盐酸。结合离子方程式解释实验现象异同的原因：_____。

（5）合并（4）中两同学的方案进行试验。B中无沉淀生成，而C中产生白色沉淀，由此得出的结论是_____________。
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