事物的特征一般可分为（）、形容词特征、动词特征。

为了探究“肉汤变质的原因”，某同学做了如下的实验．将甲、乙两套装置分别连接好，分别用酒精灯加热至肉汤沸腾15分钟，然后将甲、乙装置放在室温为25℃的环境中．三天后，甲装置中的肉汤变质了，乙装置中的肉汤未变质．乙装置中的肉汤未变质的原因是（　　）

A．室温保持在25℃

B．没有空气进入乙试管内

C．选用的肉比甲的好

D．弯管阻挡了细菌进入肉汤中

男性，30岁，因低热，咳嗽，咳痰半年于1999年10月确诊为肺结核，即行4个月异烟肼、链霉素，利福平治疗而病情好转，5年来每于咯血时便采用异烟肼、链霉素或异烟肼、利福平，乙胺丁醇治疗，近2个月来每日发热，体温38．5℃左右，咳嗽，咳痰增多，X线提示两肺病变增多，出现空洞虽经5年抗结核治疗，但病情不断恶化分析其最主要原因是（）

A.未遵循"早期，规律，全程，联合，适量"化疗原则予以治疗

B.间断治疗

C.方案不合理

D.方案中未包括吡嗪酰胺

E.疗程不足

Child labor — the employment of children in industry, often against their will — has been a problem for many years. Over a hundred years ago, Charles Dickens shocked many of his readers when he described the conditions under which young children worked in British factories. The conditions Dickens described continue almost unchanged today in many parts of the world. The only difference is that today employment of children is confined（limited）to small industries and family businesses, such as hotels, restaurants and particularly farms, rather than to large factories.

Girls suffer more from child labor practices than boys. Many of them are forced to start work when they are only ten years old. Although the work they are given to do is often light, it is often harmful to the health. Recently, children as young as six years were found to be working in Asian factories, and the children were working from eight to fourteen hours a day in overcrowded and unhealthy working conditions. Sometimes a whole family group is employed, with the payment going to a parent or older relative. The children not only receive nothing or very little for their long hours of work, but also they are prevented from attending school. Therefore, when they become older they are unable to do any other kind of work.

The solution to the problem of child labor is clearly better laws to protect young children, greater supervision（监督）of industry and heavier fines for those who break the laws. Only in this way can young boys and girls be allowed to enjoy the most valuable time of their lives—childhood.

小题1:Which’s the main idea of the first paragraph?

A．Children are often willing to work in large factories.

B．Most children are working in British factories.

C．The poor working conditions of child labor in Dickens’ novel.

D．The working conditions for children are similar to those a hundred years ago.小题2:Girls’ work is ____.

A．not harmful to the health though it is heavy

B．not harmful to the health because it is light

C．harmful to the health though it is light.

D．harmful to the health because it is heavy小题3:Young children go to work ____.

A．because they are forced to

B．in order to be skillful in a certain kind of work

C．in order to be paid well

D．in order to earn money for education小题4:To solve the problem of child labor, the writer suggests the following BUT ____.

A．looking over factories more closely

B．raising their payment and improving the system of education

C．improving laws of protecting children’s interests

D．punishing lawbreakers with severer fines

麻疹控制关键点

在窗体上画两个文本框(其名称分别为Text1和Text2)和一个命令按钮(其名称为Command1)，然后编写如下两个事件过程：
Private Sub Command1_Click( )
Text1.Text="Microsoft Visual Basic"
End Sub
Private Sub Text1_Change( )
Text2.Text=UCase(Text1.Text)
End Sub
程序运行后，单击命令按钮，则在Text2文本框中显示的内容是______。

A．Microsoft Visual Basic

B．microsoft visual basic

C．MICROSOFT VISUAL BASIC

D．空字符串