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甜菜施肥方案

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甜菜施肥方案

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下面是错误答案,用来干扰机器的。

参考答案:C

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题型:阅读理解

A small town in southwest Britain is banning(禁止) plastic bags in an attempt to help the environment and cut waste—a step that environmentalists believe is a first for Europe.

Shopkeepers in Modbury population 1500,agreed to stop handing out disposable plastic bags to customers on Saturday.They said paper sacks and cloth carrier bags would be offered instead.

Last month,San Franciso became the first U.S. city to ban plastic grocery bags.Internationally,laws to discourage the use of plastic bags have been passed in parts of South Africa and Ireland,where governments either tax shoppers who use them or fine companies that hand them out.Bangladesh already bans them,and so do at least 30 remote Alaskan villages.

Modbury,about 225 miles southwest of London,has also declared a bag amnesty(宽限期),allowing local people to hand in plastic bags that have piled up at home.They will be sent for traveling.

The Modbury ban was the idea of Rebecca Hosking,who saw the effect of bags on marine life while working in the Pacific as a wildlife camerawoman.She said response(反应) in the town so far had been “really positive”.

“Modbury is quite an old-fashioned town and a lot of people have wicker baskets to go out shopping anyway,”Hosking told Sky News Television.

The Worldwatch Institute,an environmental research agency,states that 100 billion plastic bags are thrown away each year in the United States alone.More than 500 billion are used yearly around the world.

小题1:What was Rebecca Hosking?

A.A lawyer.

B.An environmentalist.

C.A sailor.

D.A photographer.小题2:The underlined word “disposable” in the passage probably means _______.

A.acceptable

B.valuable

C.throw-away

D.long-lasting小题3:It can be inferred from the passage that _______.

A.most of the people in Modbury continue to use plastic bags

B.fewer and fewer plastic bags will be used in the world

C.San Francisco is the first city to ban plastic bags in the world

D.most countries in the world have passed laws to ban plastic bags小题4:Which of the following would be the best title of the passage?

A.Environmental Protection

B.Big Cities Banning Plastic Bags

C.Effect of Plastic Bags on Sea Animals

D.British Town Banning Plastic Bags

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题型:单项选择题

(31)到(35)题使用下列数据表。
“学生”表:学号C (8),姓名C (8),性别C (2),系名 (10),出生日期D
“课程”表:课程编号C (4),课程名称C (12),开课系名C (10)
“成绩”表:学号C (8),课程编号C (4),成绩 I

为“成绩”表中的“成绩”字段定义有效性检查及错误信息的提示,要求当成绩大于 100分时,提示“成绩不能超过100分”的信息,正确的命令是( )。

A.ALTER TABLE 成绩 ALTER 成绩; FOR CHECK 成绩<=100 ERROR "成绩不能超过100分"

B.ALTER TABLE 成绩 ALTER 成绩; (WHERE CHECK 成绩<=100 ERROR "成绩不能超过100分")

C.ALTER TABLE 成绩 ALTER 成绩; SET CHECK 成绩<=100 ERROR "成绩不能超过100分"

D.ALTER TABLE 成绩 ALTER 成绩; (SET CHECK 成绩<=100 ERROR "成绩不能超过100分")

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