问题 问答题

在考生文件夹下有一个数据库文件“samp1.accdb”,里边已建立了两个表对象“tGrade”和“tStudent”,同时还存在一个Excel文件“tCourse.xlsx”。请按以下操作要求,完成表的设计。

将“tGrade”表中隐藏的列显示出来。

答案

参考答案:

[操作步骤]

步骤1:右键单击“tGrade”表对象,从弹出的快捷菜单中选择“打开”命令。

步骤2:在任一字段名称位置右击,选择“取消隐藏字段”命令,在打开的“取消隐藏列”对话框中勾选“成绩”复选框,单击“关闭”按钮,如图所示。

 

步骤3:按Ctrl+S保存修改,关闭数据表视图。

阅读理解

阅读理解。

    Ever since news of widespread food recalls caused by a carcinogenic dye(颜料) broke, there has

been confusion over possible links to the country of the same name, but Sudan officials say there is no

connection whatever.

   Sudan 1 is a red industrial dye that has been found in some chilli powder, but was banned in food

products across the European Union (EU) in July 2003.

   Since the ban was put in place, EU officials have been striving to remove some food products from

the shelves. So far 580 products have been recalled.

Last week Sudan's Embassy in the United Kingdom asked the Food Standards Agency (FSA) for

clarification of the origin of the dye's name.

   Omaima Mahmoud Al Sharief, a press official at Sudan's Embassy in China, explained the purpose

of the inquiry was to clear up any misunderstanding over links between the country and the poisonous

dye.

"We want to keep an eye on every detail and avoid any misunderstanding there," she said. "Our embassy

to Britain asked them how the dye got that name and whether the dye had something to do with our

country. But they told us there was no relationship."

   The FSA, an independent food security watchdog in Britain, received a letter from the Sudanese

embassy last week.

    "They asked us why the dye is named Sudan, however, we also do not know how it got the name,"

she said. "People found the dye in 1883 and gave it the name. Nobody knows the reason, and we

cannot give any explanation before we find out."

   Sudan dyes, which include Sudan 1 to 4, are red dyes used for colouring solvents(溶剂), oils,

waxes, petrol, and shoe and floor polishes. They are classified as carcinogens by the International

Agency for Research on Cancer.

1. What does the underlined word mean in paragraph one?

A. Causing cancer.    

B. Having side effect.    

C. Containing poison.    

D. Poisonous.

2. How did the Sudan 1 get its name?

A. The dye is often produced in Sudan.

B. The dye has something to do with the country named Sudan.

C. Nobody is sure of the origin of the name.

D. Many foods produced in Sudan contain the dye.

3. We can infer from the passage that        .

A. the Sudan government is paying much attention to the food safety

B. Sudan 1 is often used to be added to the food

C. people didn't realize the danger of Sudan 1 until 2003

D. many food shops will be closed down

4. Which of the following is the best title?

A. Keep away from Sudan 1

B. No Sudan 1 dye links to the country

C. How Sudan 1 dye got its name?

D. Pay attention to the food safety

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